iGoogle gadgets interact with the user and utilize the Google Gadgets API. Some gadgets developed for Google Desktop can also be used within iGoogle. The Google Gadgets API is public and allows anyone to develop a gadget for any need. iGoogle recently added a new gadget named " What's Popular". It seems to be similar to Digg, Reddit, Stumbleupon. where you can vote the web pages and add content you find interesti
backstitch is a personal web experience that aggregates content from your favorite websites and services into a consistent user interface. Unlike other 'data aggregators' backstitch translates information into descriptive formats such as articles, photos, and products. With this common format backstitch is able to provide a consistent experience (regardless of source) as well as allow for detailed personalization such location search, price limits, and social filtering.