AppSumo, which is sort of like GroupOn or MacHeist for web apps, is offering $1,543 worth of credits towards developer tools and services like Linode, Heroku, Recurly and MongoHQ for $47. Most significantly, they're offering six months of SendGrid's e-mail deliverability service, valued at $479. If you've been meaning to check out any of these tools, this might be a good opportunity to do so, but please do note that these offers are mostly only available for new users.
As a special offer for ReadWriteWeb readers, the first three readers to comment below with a way to get in touch (e-mail, Twitter, Skype handle, etc.) will receive a bundle for free (please note that Echo, the third party application we use for comments, does not share e-mail addresses with us so you'll need to leave some sort of contact information in your comment). All three bundles are spoken for. Thanks everyone!
The full list of offers. Again, almost all of these apply only to new customers, so please read the fine print:
AppSumo was founded in March, 2010 by Noah Kagan, an early employee of Facebook and Mint.com and co-founder of Gambit, and David Cramer, a developer of DISQUS. It's previously offered graphic design, small business and personal productivity app bundles, with credits for geek favorites such as Remember the Milk and Evernote.