RSS and XML links

Hope these are usefull for all of you bloggers and non-bloggers.
Find more RSS feeds:
www.newsisfree.com: huge categorized listing of feeds
www.syndic8.com: like newsisfree

www.news4sites.com: general topics
www.moreover.com: commercial scraping service
myrss.com: build custom RSS channels for virtually any news site (beta)

RSSify a Yahoo group (translate forum URL into feed): feeds.archive.org

search engines for RSS (find items within feeds):
www.feedster.com
www.rss-search.com
www.daypop.com
New books at Amazon (copy url into Newsreader and change keyword 'actionscript'):
http://www.yaywastaken.com/amazon/amazon-rss.asp?keywords=actionscript

More about RSS:
Introduction to RSS; how to create a simple news feed:
www.searchenginewatch.com
www.streetblog.com
Hear it from the Maker at Userland.com: www.backend.userland.com
Most recent: www.Weblogs.com