Apress has a daily ebook deal where they discount a single ebook for 24 hours to $10. Recently they’ve been a bunch of older books, today’s is actually relevant and quite new:
Practical Rails Plugins (http://rubyurl.com/6iHZ)
I’m not associated with Apress, just passing along the information. They don’t have RSS for daily deals so I whipped up a twitterbot with ruby a while ago, follow it here: http://twitter.com/apressdailydeal
