From now until the end of Tuesday, you can download up to 700 free Marvel comics from the Marvel.com comic store and hugely popular digital comics marketplace Comixology. That is, if you can get through.

As soon as the massive promotion was announced at Marvel’s SXSW panel on Sunday afternoon, comics fans rushed to make use of the deal. Glitches quickly began to appear during the ordering process, and by Monday morning the site had crashed completely.

The Marvel1 promotion is geared towards first issues from hundreds of popular Marvel comics, including various Avengers titles, Deadpool, Spider-Man, and The Fantastic Four. Authors and artists are already weighing in, with Hawkeye writer Matt Fraction urging fans to email the ComiXology support team and specifically request his comic. [READ MORE]