Anything that is do it urself.

Here you are 40 nice Illustrator techniques.

I shouldn't be helping you get better as we compete in contests together =P. But the better my competitors get, the better I must become too. They are all quite good.

you can try vectordiary.com, its very useful.. i am also using this one

i am finding this 2. i will try ok.

can i join? i also want to learn illustrator.. =)

I have collected some good books from scribd and you could try those too if you want to...just go their and find the books related to illustrator...