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Re:If this then that by tcarnell on Thursday September 08, 2011 @06:31AM (#2973312)
...yes you could - you can actually perform exactly those tasks using http://femtoo.com. Although IFTTT is great, Femtoo has the advantage that you can track changes and be notified, or fire events when content of ANY web page, not just those listed.

Femtoo also supports Notifo notifications (direct to your mobile) and optionally a URL callback, so you can even create your own event handlers.

For example, I have a Femtoo tracker that is monitoring the latest BBC news headline, whenever it changes, Femtoo calls the LiveDirectory.org API to update the BBC profile here: http://livedirectory.org/profile/bbc - as LiveDirectory.org is a pub/sub system, subscribers to the LiveDirectory BBC profile will recieve a webhook style callback.

Re:If this then that by tcarnell on Thursday September 08, 2011 @06:34AM (#2973318)
Additionally, Femtoo stores every value of every change in content so you can see history data about flight prices with pretty graphs etc...oooohhh!
Re:If this then that by ericdykstra on Thursday September 08, 2011 @11:50AM (#2974352)
ifttt has the advantage of a beautiful design, being free, and not spamming their service on hacker news.