Readmill, an iOS eReader app that encourages sharing through Facebook, has introduced a free eBookstore. The bookstore will feature free eBook classics, as well as free premium eBooks for one day periods.

Here is more from the Readmill blog:

It’s like a bookstore, except everything is free. With a single tap, you’ll be able to read classics such as The Great GatsbyMetamorphosis andAnna Karenina. Not only that, today you’ll be able to pick up premium books that usually have a price tag for free — only for 24 hours. It’s all part of our new Explore section.

Readmill is offering the limited time promotional downloads through partnerships with publishers. Readers can check back regularly to access new free downloads.