welcome leoso - here are some good places to get started!
The Rules - Always a great place to begin
The FAQ - Next stop, answers to a lot of questions!
Introductions - Which is where this thread should probably be! That's ok though
Tools/Resources/Links - This is the most complete listing that I know of anywhere for pixel artists that are looking for info on what their options are. Also includes a lot of good tutorials!
Videos - Watching these made me a better artist! Well not really, but it did help me figure out how to use Pro Motion, which removed some impediments to my progress at least.
The Challenges and Activities Forum - this is full of lots of contests and fun challenges to give you ideas about what to pixel, if you need some motivation.
Ok, get reading!