1. Monster.com
2. SecondMarket
2.1. ReceivablesExchange
3. Marketocracy
4. Social Web / Hive Mind Focus: Relationships Mode: Many <-> Many Factor: Telecom ubiquity
4.1. Blogging
4.1.1. Tumblr
4.1.2. Livejournal
4.1.3. Blogger
4.1.4. Xanga
4.1.5. posterous
4.1.6. Blogster
4.1.7. Blogspot
4.1.8. Microblogging
4.1.8.1. Twitter
4.1.8.2. Yammer
4.1.8.2.1. Runkeeper
4.1.8.3. Marginize
4.1.8.4. Blippy
4.1.8.4.1. Swipely
4.1.8.5. Formspring.me
4.1.8.6. Buzz
4.1.8.7. Tripit
4.1.8.8. Texts from Last Night
4.1.8.8.1. My Life is Average
4.1.8.9. 4chan
4.2. Photo Sharing
4.2.1. Soup.io
4.2.2. DeviantArt (c/f goods)
4.2.3. Picasa
4.2.4. Flickr
4.2.5. Photobucket
4.3. Social Network
4.3.1. Facebook
4.3.1.1. Hot Potato
4.3.2. Friendster
4.3.3. Myspace
4.3.3.1. PatientsLikeMe
4.3.4. Orkut
4.3.5. Ning
4.3.5.1. Tribes.net
4.3.5.1.1. Grou.ps
4.3.6. Lunch
4.3.6.1. Plancast
4.3.6.1.1. GoTribal
4.3.7. TheFunded
4.3.7.1. Founder Dating
4.3.7.1.1. PartnerUp
4.3.8. Inkpop
4.3.9. Sciencefeed
4.3.9.1. Researchgate
4.3.10. Currensee
4.3.11. Goodreads
4.3.11.1. LibraryThing
4.3.12. Sermo
4.3.13. Akoha
4.3.14. bundle.com
4.3.14.1. Wesabe
4.3.15. Youth
4.3.15.1. Habbo
4.3.15.2. Hi5
4.3.15.3. Bebo
4.3.16. Professional
4.3.16.1. LinkedIn
4.4. Events
4.4.1. Upcoming
4.4.2. Meetup
4.5. Dating Sites
4.5.1. OKCupid
4.5.1.1. Crazy Blind Date
4.5.2. Match.com
4.5.3. EHarmony.com
4.5.4. PlentyofFish
4.5.5. Chemistry
4.6. Geo-Social
4.6.1. Foursquare
4.6.2. Brightkite
4.6.3. GoWalla
4.6.3.1. Lunchwalla
4.6.4. Whrrl
4.6.5. SCVNGR
4.6.6. Google Latitude
4.6.7. MyTown
4.6.8. Causeworld
4.6.9. Skout
4.6.10. Loopt
4.6.11. Foodspotting
4.6.12. Grindr
4.6.13. Augmented Reality
4.6.13.1. Junaio
4.6.13.2. Google Earth
4.6.13.3. Layar
4.7. Video
4.7.1. YouTube
4.7.2. Vimeo
4.7.3. Howcast
4.7.4. Livestream
4.7.4.1. Ustream
4.7.5. ChatRoulette
4.7.6. Flockdraw
4.7.7. Google Video
4.8. Secondary
4.8.1. Gist
4.8.2. Etacts
4.8.3. Thread
4.8.3.1. Mezoog
4.8.4. Platform
4.8.4.1. Zynga
4.8.4.2. Oneforty
4.8.4.3. IntenseDebate
4.8.4.4. TC Elevator Pitches
4.8.4.5. Ayogo
4.8.4.5.1. Healthseeker
4.8.5. Analytics
4.8.5.1. Viralheat
4.8.5.2. Ubervu
4.8.5.3. Radian6
4.8.5.4. Hootsuite
4.8.5.5. Omniture
4.8.6. Stream/Channel Management
4.8.6.1. Tweetdeck
4.8.6.2. Digsby
4.8.6.2.1. SeaMonkey
4.8.6.3. Ping.fm
4.8.6.3.1. Friendfeed
4.8.6.3.2. Cliqset
4.8.6.4. Check.in
4.8.6.5. RSS
4.8.6.6. Indeed.com
4.8.6.7. Threadsy
4.8.6.8. Seesmic
4.8.6.9. Blippr
4.8.6.10. Plan.fm
4.9. Adjunct Social
4.9.1. XBox Live
4.9.2. Steam
4.10. User Forums
4.10.1. Comment sections of online newspapers, blog entries, etc.
4.10.1.1. Moontoast
5. Barn Raising Focus: Collaboration, Contribution Mode: Many -> One Factor: Deploying spare capacity/capital for intrinsic benefit
5.1. WalkJogRun
5.2. ssss
5.3. LiveMocha
5.4. Google Translate
5.5. TC Invite Share
5.6. Wiki/DB
5.6.1. Wikipedia
5.6.2. Crunchbase
5.6.3. Knol
5.6.4. TheGradeCafe.com
5.6.5. YouNoodle (c/f idea market)
5.6.6. Zillow
5.6.7. Retailmenot
5.6.8. Payscale
5.6.9. Cooks.com
5.6.9.1. Allrecipes.com
5.6.10. RepairPal
5.6.11. Traffic
5.6.11.1. Google Open Spot
5.6.12. How To
5.6.12.1. Instructables
5.6.12.2. Wikihow
5.6.12.3. Ehow
5.6.13. IMDB
5.6.14. Yelp
5.6.15. TripAdvisor
5.6.16. Angie's List
5.6.17. Rotten Tomatoes
5.6.18. Waze
5.6.19. gdgt.com
5.6.20. Healthgrades.com
5.6.21. Flixster
5.6.22. User Curation
5.6.22.1. Pinyadda
5.6.22.2. Hunch
5.6.22.3. Amazon Lists
5.6.22.4. GetGlue
5.6.22.5. Netflix Lists
5.6.22.6. Investment
5.6.22.6.1. Covestor
5.6.22.6.2. Kaching
5.6.23. Recommendation
5.6.23.1. Google Search
5.6.23.2. Last.fm
5.6.23.2.1. Pandora
5.6.23.3. iLike
5.6.23.4. Milo
5.6.23.4.1. ThisNext
5.6.24. Ratings
5.6.24.1. Adjunct
5.6.24.1.1. Netflix Recommendations
5.6.24.1.2. Amazon Recommendations
5.6.24.1.3. iTunes Genius
5.6.24.1.4. Epicurious ratings
5.6.24.1.5. Amazon Ratings
5.6.24.1.6. Steam ratings
5.6.24.1.7. iTunes ratings
5.6.24.1.8. YouTube Playlist
5.7. Journalism
5.7.1. Current.tv
5.7.2. NowPublic
5.7.3. Assignment Zero
5.8. Prediction Markets
5.8.1. HSX.com
5.8.2. Cantor Exchange
5.8.3. simExchange
5.8.4. Celebdaq/Sportdaq (defunct)
5.8.5. Smarkets
5.8.6. Intrade
5.8.7. Inkling
5.8.8. Internal company markets
5.8.8.1. Google
5.8.8.2. Eli Lilly
5.8.8.3. Goldman Sachs
5.8.8.4. Deutsche Bank
5.8.8.5. Microsoft
5.8.9. Iowa Electronic Markets (IEM)
5.8.10. Policy Analysis Market (PAM - defunct)
5.9. Consumer-Driven Production
5.9.1. Threadless
5.9.2. Patch Together
5.9.3. Local Motors
5.10. Query Answer
5.10.1. Yahoo! Answers
5.10.2. Google Aardvark
5.10.3. Answers.com
5.10.4. Fluther
5.10.5. Piazzza
5.10.6. Intuit Community
5.10.7. Fixya
5.10.8. Amazon's Askville
5.10.9. LinkedIn Answers
5.10.10. Swingly
5.10.11. Ask.com
5.11. Idea Markets
5.11.1. GetSatisfaction
5.11.2. MyStarbucks
5.11.3. Kluster
5.11.4. IdeaScale
5.11.5. Dell's IdeaStorm
5.12. Social Bookmarking
5.12.1. Digg
5.12.2. Delicious
5.12.3. Reddit
5.12.4. StumbleUpon
5.12.5. Pearltrees
5.12.6. http://mashable.com/2006/07/24/diigo-launches-nobody-cares/
5.13. Skype
5.14. 23andme
5.15. Captcha/ReCaptcha
5.16. SETI
5.17. Eventful
5.18. Foldit
5.19. Fundraising
5.19.1. Sprinklepenny
5.19.1.1. Flattr
5.19.1.1.1. Kachingle
5.19.2. Kickstarter
5.19.3. MyFootballClub
5.19.4. SellaBand
5.19.5. Socialvibe
5.20. Open Source Software
5.20.1. Apache
5.20.2. Mozilla Foundation
5.20.3. Open Office
5.20.4. Linux
5.20.5. VLC
5.20.6. Bittorrent
5.20.7. Chromium
5.20.8. Source engine
5.20.8.1. "Counter-Strike"
5.20.9. Topcoder
5.20.10. Map-editing tools
5.20.10.1. "Little Big World"
5.20.10.2. "Blizzard"
5.20.11. Apps Marketplace
5.20.11.1. Android
5.20.11.2. iOS
5.20.11.3. Facebook
5.20.11.4. Blackberry
5.20.12. Cambrian House (defunct)
5.20.13. Joomla
5.20.13.1. Drupl
5.20.13.1.1. Wordpress
5.21. Pre-Web
5.21.1. 20% Time
5.21.2. Toyota Way
5.21.3. Work Out
5.21.4. Blood Donation
5.21.5. Organ Donor Registry
5.21.6. The Prize Model
5.21.6.1. Race to the Top
5.21.6.2. The X Prize
6. Bazaar 2.0 Focus: Exchange Mode: One -> Many Factor: Reducing friction (transaction cost, barrier to entry), extrinsic benefit
6.1. Events
6.1.1. Eventbrite
6.1.2. Brown Paper Tickets
6.2. Goods
6.2.1. Ebay
6.2.1.1. Half.com
6.2.2. Etsy
6.2.3. Zazzle
6.2.4. Amazon
6.2.5. iStockPhoto
6.2.6. CafePress
6.2.7. Freecycle
6.2.8. Paperback Swap
6.2.8.1. BookMooch
6.2.8.2. BookCrossing
6.2.9. Plastic Jungle
6.2.9.1. Gift Card Exchange
6.2.9.1.1. Rackup
6.2.10. Genapple
6.2.11. Foodler
6.2.11.1. Grubhub
6.2.12. Swap.com
6.3. Tasks, Solutions
6.3.1. Task Rabbit
6.3.2. Amazon's Mechanical Turk
6.3.3. Innocentive
6.3.4. Solvate
6.3.5. Fiverr
6.3.6. ChaCha
6.3.7. oDesk
6.3.8. Crowdflower
6.3.9. TimeTrade Circles
6.3.10. Elance
6.3.11. CloudCrowd
6.3.12. Gather
6.3.13. YourEncore
6.3.14. Crowdspring
6.3.15. fetchmob
6.4. Postings
6.4.1. Craigslist
6.4.2. Careerbuilder
6.4.3. Jumo
6.5. Kauffman iStart
6.6. Angel List
6.7. Capital Sharing
6.7.1. Property
6.7.1.1. Relay Ride
6.7.1.2. Second Porch
6.7.1.3. Home Exchange
6.7.1.4. AirBnB
6.7.1.5. Couchsurfing.com
6.7.1.6. Sobi
6.7.1.7. Zimride
6.7.1.8. P2P Filesharing
6.7.1.8.1. Limewire
6.7.1.8.2. Bittorrent
6.7.2. Financial
6.7.2.1. Lending
6.7.2.1.1. Micro-Finance
6.7.2.1.2. Prosper
6.7.2.1.3. LendingClub
6.7.2.1.4. Loanio
6.7.2.1.5. GreenNote