As mentioned earlier, since 50 percent of the online queries will be driven by voice search by 2020, as a real estate agent, you will have to optimize your web

What are the most productive ways to spend time on the Internet?

Productive ways to spend time on the Internet and some sites you may not know.

Educational/Learning
Khan Academy – video lectures on just about any subject
TED: Ideas worth spreading – lectures by smart people
750+ Free Online Courses From Top Universities | AE.org – classroom lectures
Play online, learn online and feed the hungry | Freerice.com – expand your vocabulary while feeding the hungry
Test your knowledge: Clickable quizzes on geography, history, flags and other activities for learning – a collection of geography quizzes
how fast are your Math skills? A simple Math Training Game for everyone – timed math quizzes
Classic Short Stories – the best short stories
Erowid – learn about drugs
Instead of TV, you should watch… – a collection of intellectually stimulating videos
factsie – a place to learn amazing and unusual historical and scientific facts
100+  Google Tricks That Will Save You Time – Today, knowing how to use  Google effectively is a vital skill. This list links out to enough  Google related resources to make you an elite Google hacker.
100  Skills Every Man Should Know – Another compilation article with  instructions to help you learn new skills. This one says it’s geared for  men, but I think most of these skills are applicable to women as well.
Work.com – An extensive directory of how-to guides for beginning entrepreneurs.
Learn Skills
Page on highercomputingforeveryone.com – learn to program in C
Chess | Learn, Practice, Play Chess for Free | The Chess Website – a bunch of chess tactics, tutorials, and puzzles
HTML, CSS, and JavaScript Tutorials, References, and Articles – learn html
Learn to code – learn to code through interactive lessons
Cooking For Engineers – learn to cook
Digital Photography School – Digital Photography Tips and Tutorials – learn photography
Memrise – Learn something new every day – learn a foreign language
Justin Guitar | Hundreds of free guitar lessons – guitar video tutorials
Livemocha – Free Online Language Learning – Free Lessons Online – a language learning community
musictheory.net – learn music theory
Investopedia – Educating the world about finance – learn and practice investing
All Recipes – A complete guide to recipes and cooking tips. If you’d like to learn to be a better cook, this site is for you.
Woopid  – Watch free technology training videos. Get help and answer your  computer and gadget questions with thousands of video tutorials for PCs,  Macs, and various software applications.
DIY Network – A go-to  destination for rip-up, knock-out home improvement projects. The site  offers expert answers the most sought-after questions regarding creative  projects for DIY enthusiasts.
Useful Web Apps
Mint: Money, Bill Pay, Credit Score & Investing – for budgeting your money
Page on duckduckgo.com – a search engine that isn’t following you
PadMapper Apartment Search for Oodle, Rent.com, Kijiji, and Craigslist Apartments – maps out possible apartments/homes that fit your criteria
Zillow: Real Estate, Apartments, Mortgage & Home Values in the US – another great source for finding your next home
Print Friendly & PDF – make any webpage print friendly
Save paper & ink printing only what you want ” PrintWhatYouLike.com – print precisely what you want from any webpage
Send notes that will self-destruct after being read – write a note to someone that will self-destruct after they read it
The Freecycle Network – a network of people giving away free stuff in their towns
Stay With Locals & Make Travel Friends – crash on someone’s couch anywhere in the world
An Ingredient based Recipe Search Engine – search for recipes based on the ingredients you have
Pipl – People Search – a search engine for finding people
DonorsChoose.org: Teachers ask. You choose. – donate to a classroom in need
Charity Navigator – America’s Largest Charity Evaluator  | Home – evaluates various charities
Government Surplus Auctions – GovDeals.com – find cheap stuff the government is getting rid of
Newsmap – popular news headlines
Scanner Frequencies and Radio Frequency Reference – listen to radio channels across the nation
Technology and Programming News – link aggregator
Worddit Document – Reddit in Microsoft Word form
A flexible payments API for platforms – like paypal but less scummy
THE FUCKING WEATHER – a more profane look at the weather
Computational Knowledge Engine – a computational knowledge engine
Heavens-Above – follow satellites and constellations
What Is My IP – The IP Address Experts Since 1999 – figure out you I.P. address
Free online speed reading software – improve reading speed and comprehension
SimplyNoise — The Best Free White Noise Generator on the Internet. – listen to white noise
Amazon price tracker, Amazon price history charts, price watches, and price drop alerts. – tracks prices for any product
Dynamic Periodic Table – an interactive periodic table
RetailMeNot.com Coupon Codes and Discounts – find coupons for just about anything
Search all of Craigslist nationwide & more – search all of craigslist with one search
Free Screen Sharing and Online Meetings – peek in on somebody’s computer screen
This to That (Glue Advice) – find out the best way to glue this to that
Website Review – SEO Tool | WooRank.com – find out what your website is missing, how you can improve it, and how to make Google recognize it better
Draw On Maps and Make Them Easily. – draw on maps then share them with friends
mailVU Video Email – video email
FREE Rhyming Dictionary – online rhyming dictionary
Home design and decorating ideas to get inspired and get expert tips – design your dream home
WeTransfer – an easy way to send big files
Map of the Dead – shows places around you to help you survive the zombie apocalypse
Pastebin.com – #1 paste tool since 2002! – a place to paste text
idlekeyboard – make it sound like you’re hard at work
WHERE THE FUCK SHOULD I GO FOR DRINKS? – find somewhere to get a drink in your area
Dropbox – backup your sensitive document online
Airline Seat Maps, Flights shopping and Flight information- Best Airplane Seats – find out where the best seats are on your plane flight
Page on unlistmy.info – find out which websites store data about you, and tell them to unlist your info
ifoundyourcamera Resources and Information. – a collection of lost cameras
sizeasy.com – check the size of items you buy online
sleepyti.me – plan out your sleep schedule better
Install or Update Multiple Apps at Once – download all the free software you want at the same time
RipeTrack – find out when certain fruits are ripe
Page on compassionpit.com – talk out your problems with others, or help others yourself
Trade Used Books with PaperBack Swap (the world’s largest Book Club) – swap books with others
Gallery on ReddPics | Reddit Pics – a look at Reddit’s favorite pictures
The automatic diet planner – plan out your meals better
Beautiful Weather Graphs and Maps – a graphical look at the weather
Traceroute, Ping, Domain Name Server (DNS) Lookup, WHOIS, Email Verification Tools – network tools
Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more – the best place to buy things online
Home – correct grammar and check for plagiarism
The Web’s Easiest Telephone Reminder – send yourself a wake-up call
Pick Parts, Build Your PC, Compare and Share – plan out your next pc build
NoPhoneTrees.com – talk to an actual person instead of a machine when you call customer service
The Useless Web – visit random useless websites
CA App Synthetic Monitor website monitoring service – find out how long it takes websites to load
ShowMeDo  – A peer-produced video-tutorials and screencasts site for free and  open-source software. The large majority are free to watch and download.
Entertainment – Music, Movies, Sports, Books
Page on redditunes.com – Reddit’s favorite music
Grooveshark – great place to listen to tunes
Is your favorite TV show back on the air? – find out when your favorite television shows come back on air
The tourist map of literature – type in an author and they will show you others of a similar style
The @RunPee app – find out the best time to run to the bathroom during any movie
Concerts, tour dates, & tickets – searches your music library and tells you when your favorite musicians play in your area
Search for Music Using Your Voice by Singing or Humming, View Music Videos, Join Fan Clubs, Share with Friends, Be Discovered and Much More For Free! – sing or hum a song you don’t the name of and it will identify it for you
/Film – Blogging the Reel World – the best movie news blog on the internet
We know WHY people like things. – find out what movie you should watch next
One Page of a book, one moment to grab you – read page 99 of a book
What should I read next – get recommendations for your next read
Page on sbnation.com – awesome community of sports blogs
Just the First Frame – just the first frame of today’s webcomics
The Tourist Map of Music – find similar musicians
InterWorking Labs – find which famous writer your write like
Page on jimloy.com
Other Interesting Blogs
Shop – Stuff of Men – cool stuff every man should own
The Art of Manliness – learn man stuff
Page on johnnywebber.com – hobbies, habits, and personal growth
thedailymiscellany.com – daily tips, DIYs, ane more
Personal Finance That Makes Cents – personal finance advice
Boston Dating Coach | Online Dating Coach | For Men – seduction tips
Brain Pickings – a human-powered discovery engine
The New York Times – a look at politics through the numbers
Fresh hacks every day – a new DIY project every day
Shorpy.com – old and interesting pictures
The Big Picture – amazing pictures covering the latest news around the world
Science news and science jobs from New Scientist – science news
Uncrate – a place for stuff men love
a community driven visual potluck – pictures of delicious food
zen habits – take a breath and read this blog
foodgawker – more pictures of delicious food
The Burning House – a blog cataloging which possessions people choose to save from a burning home
dwellinggawker – check out how amazing the inside of some homes look
TSD – Frugal Living, Savings, Credit Cards, CD Rates, Investing – more personal finance advice
Interesting news from around the world – world news and analysis
Random, Interesting, Amazing Facts – Fun Quizzes and Trivia | Mental Floss – where knowledge junkies get their fix
Mr. Money Mustache – financial advice through badassity
STUDYBLUE | Find and share online flashcards and notes from StudyBlue. Any subject, anywhere, anytime. – study tips
Letters of Note – personal letters written by famous people