| Category | Data Silo | Web Service | Data Silo Aggregator | Web Service Aggregator |
| Advertising | Doubleclick
Google Adwords
Tribal Fusion
Yahoo Search Marketing | Google Ad Words API
Yahoo Search Marketing
Wordtracker | LinkShare | BetterPPC.com
Natpal.com |
| Blogging & Publishing | Blogger
Live Journal
MSN Spaces
Six Apart
Type Pad
| Blogger
Live Journal
Typepad
Tawkr | Bloglines
Rojo |
|
| Classifieds (For Sale) | Craigslist
Ebay | Ebay (open APIs) | Oodle | Oodle |
| Classifieds (Jobs/Cars/Apartments) | Career Builder
Autotrader
Apartments.com | Ebay (open APIs) | Oodle
Indeed
Simply Hired
| Oodle
Housing Maps |
| Communication | AIM
Google Talk
MSN Messenger
Skype
Yahoo Messenger | SkypeWeb Service
MeeboVereConference | Trillian |
|
| Events | Ticketmaster | Upcoming.org
EVDB
Fat Lens
Goovite | EVDB | Evmapper |
| Financial Information | AMEX
Chase
Fidelity | Free Benchmark Exchange - Puts Your KPIs into Perspective | Yodlee |
|
| Gambling | Party Poker
Tradesports |
|
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| Music/Audio | iTunes
Napster
Amazon
Walmart |
Sony Music Store |
|
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| Payment (Transaction) | Paypal
Firepay
Neteller
Prosper
Zopa
Fundable | Paypal API GreenZap - New! | Visa - aggregates banks
Paypal - aggregates credit cards |
|
| People (Dating) | Match
Hot or Not
TrueDating site - Find True Love | | Lycos Dating Search |
|
| People (Professional) | Linked In
Plaxo
Spoke
365kitHoovers | Taleo | Zoom Info |
|
| Platform | Salesforce.com (Appforce) | Salesforce.com (Appforce) | NetMesh
Salesforce.com (Appforce) | NetMesh |
| Reviews | Epinions
Trip Advisor
Zipingo |
| Become
Openlist |
|
| Travel | American Airlines
United Airlines
Radisson Hotels
MedSim? | Galileo International | Expedia
Hotwire
Hotels.com
Kayak
Mobissimo
Sidestep
Yahoo Fare Chase |
|
| Video | Our Media | youtube | Yahoo Video Search |
|
| Wishlist | ServeMp3 | MasterWish |
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