Google Docs has a new option allowing your documents to be saved directly to the ePub format.

All you have to do is click File > Download as > EPUB Publication.

EPUB documents are widely supported across most ebook readers, so this could be a good choice for sharing your work with others.

The format isn’t as well supported on Windows, but Cool Reader is an open-source cross-platform viewer which handles ePubs and many other formats: FB2, MOBI, PDF, more.

Google’s official announcement of the update is here.