ArsRSS re-reads between approximately 100 art and new media related RSS feeds twice-daily, caches the feeds and completely re-writes its database of words found in the feeds. This makes for fast response times both for searching across feeds and for accessing individual feeds.
In the background, ArsRSS collects data about the terms queried, what parts of the globe the queries come from, and the frequency with which individual feeds are accessed.
The site provides several services: (1) users can access the data to create their own news feeds based on specific searches; (2) the site recreates daily a Calls and Opportunities news feed determined from the processed feeds.