Over 500 titles, and GIT Corp. has done a pretty solid job of scanning

They do a decent job putting the comics into a logical hierarchy so you can find publisher, series or type

GIT Corp has done a fine job with this collection

As usual, GIT does a great job with the scans and goes an extra step - including not just the original comics, but also any graphic novels the collected the comics - which are especially nice when you're reading some of the DC ones