I create a lot of web forms and like to share the data with those whom the form was created for. And while I was brushing my teeth the other morning I thought why not dump it straight to a Google Docs Spreadsheet, since most of the people I do this for are very familiar with working with a spreadsheet anyway.
Thanks to the Google Data Spreadsheets API this and many other features are possible. The site is well documented and the Zend Framework PHP client is a huge help. Luckily someone else had tried the same thing and documented it on his blog, so check that out as that was a tremendous help for me figuring out just how to do this.