Default [Q] Question about Tasker and its abilities

Hey XDA'ers,

I've got a quick question about Tasker,

I've been using it for quite a while and am beginning to get a hang of it.
Since I'm a pretty social guy, is there something I could do to make it automatically post a picture on Facebook, automatically tweet or direct message somebody at a certain date or time on Twitter, or maybe broadcast a certain message on Blackberry Messenger?

Is that do-able or not? And if it is possible is there a tutorial on how to do this? Or could somebody explain to me how I'd do this?

Thanks