eating cucumbers without permission...

Most of the first-generation mashups have been limited to the data freely available from governments, sites with APIs etc.; I can't wait to see what we'll get now that they can use Freebase. I can't wait to use it myself, for that matter. Best of all, those magical letters: "CC-BY".

Provides email addresses which redirect (POST) to a URL of your choosing.

Piggy Bank plugins are site-specific screen-scrapers that extract structured data as RDF, which can be analyzed, sorted and connected at your leisure, or shared through a "semantic bank".

Pipes is a free online service that lets you remix popular feed types and create data mashups using a visual editor. You can use Pipes to run your own web projects, or publish and share your own web services without ever having to write a line of code.