Instant Picture Creator is a wrapper to produce images on demand for Web sites. It has filter management, and it's possible to add new filters. It can cache filtered images, works independently (no backend is needed), and is easy to integrate with existing Web sites. It includes two basic filters for resizing images and manipulating colour palettes. Currently it supports PNG, GIF, and JPEG.
PubwichFork is a Web application that allows you to aggregate your published data from multiple Websites and social services into a single HTML page. It is an improved version of the original application, since Pubwich is not actively maintained anymore. This fork fixed several bugs, adds filtering methods to the data streams, and enables output caching and post-output processing. Besides standard feed formats like Atom and RSS, PubwichFork supports Delicious, Youtube, Vimeo, Flickr, Last.fm, and more.