Data Source - Data Source - page 8

AIM
You can look up an AOL Instant Messenger account from an email address, and you get a por-
trait image and username back. The exact information returned depends on whether the user is
online, and you'll only get a default image if he or she is away. The service uses a REST/JSON
API, and it requires a sign up to access:
curl "http://api.oscar.aol.com/presence/get?f=json&k=<key>&\
t=petewarden%40aol.com&emailLookup=1&notFound=1"
{"response":{"statusCode":200, "statusText":"Ok", "data":{"users":[{
"emailId":"[e-mail]",
"aimId":"petewarden",
"displayId":"petewarden",
"state":"offline",
"userType":"aim",
"presenceIcon":"http://o.aolcdn.com/aim/img/offline.gif"
}]}}}
FriendFeed
FriendFeed never had a lot of users, but many inluential early adopters signed up and created
proiles including their other accounts. This makes it a great source of Twitter and Facebook
account information on tech-savvy users, since you can look up their FriendFeed accounts by
email address, and then pull down the other networks they mention in their proiles. It's a REST/
JSON interface, and it doesn't require any authentication or developer signup to access:
curl "http://friendfeed.com/api/feed/user?emails=tim%40oreilly.com"
{
...
"user":{"profileUrl":"http://friendfeed.com/timoreilly",
"matchedEmail":"[e-mail]",
"nickname":"timoreilly",
"id":"d85e8470-25c5-11dd-9ea1-003048343a40",
"name":"Tim O'Reilly"}
}]}
curl "http://friendfeed.com/api/user/timoreilly/profile"
{"status":"public","name":"Tim O'Reilly",
...
"services":[
{"url":"http://en.wikipedia.org/wiki/Blog","iconUrl":"...",
"id":"blog","profileUrl":"http://radar.oreilly.com","name":"Blog"},