I recently described how to subscribe to your GMail inbox in FeedDemon, and apparently this is a popular feature. However, if you have more than one GMail account, you may find it tricky to subscribe to both since only a single login is supported.
Luckily, there is a workaround for this – just include your login in the feed URL, using this format:
https://username:password@gmail.google.com/gmail/feed/atom/
Update: I originally reported that this method shouldn’t be used when subscribing to your GMail feed in Bloglines, but this was a false alarm. My apologies for jumping the gun!
Update 2: As recommended in the comments, I’ve changed the URL from http to https.