Digital magazine publishing company Zinio is for sale. CNN has the scoop: “The San Francisco-based company has hired investment bank Montgomery & Co. to manage the process, with one source saying that the company is seeking between $50 million and $100 million. No idea yet if there is buy-side interest at that price.”

Zinio’s service let’s users purchase subscriptions and individual issues of digital magazines and newspapers and read them through tablet smartphone, and desktop apps. They sell thousands of magazines including Rolling Stone, Harper’s and VIVmag.

In February, the company launched a set of content creation tools called  Zinio Fusion. The toolset includes assets for designing and publishing digital magazines, including the ability to make them interactive.