Facebook for Android Help Please? ?

[t h e . o n e . a n d . o n l y]

When I first got my android it came with like a widget thing for Facebook, where on the homescreen it would show some statuses, other functions, etc. The problem is, I accidentally deleted it while rearranging the apps and whatnot on my screen. Is there any way I can get it back? Also, how do you get those? like is there one for twitter, calendar, etc.? Thanks in advance!