For the moment, the only tracker is the web navigation tracker and it lives as a chrome extension, using the API and jsonp, it sends events to reportr.io or your own instance.

For trackers for Facebook (twitter, github ...), I planned to add a system of addons to add in one click a tracker for the service (which use the Facebook API), but I'm not sure yet what is the best implementation for this. For the moment, you can use the API (or a library : python or javascript) to track events with scripts.

No manual entry yet, but it'll be added soon. But you can write a python script (10 lines of code) to do it for you : https://gist.github.com/SamyPesse/6859673

(Sorry for my english, I'm french).