These four - color bookmarks feature your cover art, a summary of your book and ordering information. (dorrancebookpromotion.com)
W.r.t. Vivisimo, I should mention, their social bookmarking feature allows you to only bookmark content from and within Vivisimo. (slaw.ca)
Today comiXology will introduce a continuous bookmarking feature for all of its comics apps, which Venture Beat reports will permit users to pick up reading on one device where they left off on another. (cbr.com)