ComiXology added Andrews McMeel and Thrillbent, launched its first "Submit" comics and a "continue" feature, and improved on Windows 8 in a busy week.  
The first titles on comiXology apps and Websites from Andrews McMeel, which has many of the best-selling modern comic strip collections, are Dilbert, Doonesbury, and Big Nate, with more to come. 
The first title on comiXology apps and Websites from Mark Waid’s Thrillbent, his new digital experiment in comic creation, is Insufferable, written by Waid with art by Peter Krause.  Other Thrillbent titles will be added in the future. 
ComiXology also launched the first titles released through its "Submit" feature, which helps self-publishers release their works on comiXology’s apps and Websites.  It has been in private beta test and is expected to launch to the public in early 2013.
And on the feature front, comiXology readers can now bookmark their comics on one device, and then open them to the same place on another.
Last, comiXology a full Windows 8 app release, which includes in-app purchasing.
--Disclosure: ICv2 has a business relationship with comiXology as a representative for its Retailer Tools; ICv2 CEO Milton Griepp also serves on the board of comiXology.