The Official Comic Book Thread

[Indifferent Clox]

A couple questions to start this off:
Identity Crisis, Infinite Crisis, Crisis on multiple earths, Crisis on infinite earths, which came first?
My first question here is which of these storylines came first?

I know Graduation day kinda started it all and I'm currently downloading all these via torrent.

My second question is: is there anywhere online to read comics free? Hopefully including these comics?

number 3: what else do i need to read to understand these series?

number 4: What are your fav comic's series/ graphic novels?

My top 5 right now are:

1. Watchmen
2. Dark Knight Returns
3. Sandman
4. Spawn (I loved Spawn/Batman mcfarlane and Miller together= amazing)
5. Sin City is tied with Stray Bullets