This week Dark Horse Comics, Oni Press and Image Comics have all announced deals expanding their relationships with comiXology and Amazon.  This past June Dark Horse and comiXology announced an agreement that included all of the Dark Horse graphic novel collections (see "ComiXology Gets Dark Horse"), and now the two companies have expanded the agreement to cover all of Dark Horse’s single issues as well.  The agreement with Dark Horse means that all the comic releases from major American comic book publishers are now available via comiXology and Amazon.

ComiXology’s new deal with Image Comics expands the two companies’ previous agreement and makes all the Image Comics titles available via Amazon’s Kindle (to celebrate the deal, all The Walking Dead volumes from Image will be available on the Kindle at 50% off).

Oni Press also re-upped with comiXology and Amazon—and as was the case with Image Comics, all of the Oni Press titles like Scott Pilgrim and The Sixth Gun will now be available on the Kindle as well.

ComiXology and Amazon have been expanding their offerings beyond mainstream comics as well.  Just 3 weeks ago they announced a deal with literary comics powerhouse Drawn & Quarterly (see "Drawn & Quarterly Joins ComiXology, Kindle").