Method #1
The 360 Ollie is jsut the same as the 180 Ollie but the board spins 360 degrees, not just 180 degrees.
Step 1: Put your feet in ollie position. For me the further back your front foot is, the higher you can do the trick, but it's harder the further back it is. That's just for me. Try different positons to see which is best for you.
Step 2: Turn your body so that your back hand is reaching across your stomach. Then pop the tail of the board up.
Step 3: Now, right when you pop the board up, start spinning your body counterclockwise (clockwise for backside). When your body is in the regular postion, slide your foot like in the ollie (You should really be spinning fast to get the full 360 off). Then keep spinning. When the board has spun 360 degrees...stop spinning.
Step 4: Then you just need to land it.