Guys, I noticed I stopped getting facebook, twitter, and hotmail notifications yesterday. Also, I noticed my weather apps were not updating like they were supposed to.
Today I stopped taskiller from running and I started getting facebook, twitter, hotmail notifications and my weather apps started updating perfectly.
Not sure if I was doing something worng but apparently when you have taskiller running and you end all programs using taskiller it stops things from updating or at least that's what happened to me.
I stopped taskiller from running and everything worked. Problem solved.

Also according to this thread an task killing app isn't needed.
PLEASE READ: Do NOT worry about Apps running in the Background
No need to thank me for this....