First is the wikipedia entry for RSS.
Next is Common Craft's great video explaining RSS.
Also a video from NCTT -The National Center for Telecommunications Technologies - demonstrating how to use RSS.
- (1)SendMeRSS - A great alternative to feed readers or aggregators - especially for those whose daily workflow is centered on email.
(2) MailBucket - takes the complete opposite approach, generating an RSS feed from you email and sending your email to an RSS reader. CAUTION: This approach is not for the security.
(3) TwitterFeed - I love twitter and have been using it for some time. Twitterfeed - takes content from RSS feeds and sends the content as updates to twitter. Here's a twitter feed for my blog. You can just follow this twitter account and get any new blog postings in yout twitter updates - pretty cool.
(4) Pingie - Feed updates via SMS - great for the iPhone.
(5) FeedJournal - If RSS and email are too techy for you and you prefer your news on paper, this might be your solution. Subscribe to RSS feeds and FeedJournal converts the content to a printable newspaper.
(7) ReminderFeed - Use your feed reader as a reminder service.
(10) FeedCrier - Feed updates in your chat program (AIM , MSN Messenger, Jabber and GoogleTalk).
(11) ZapTXT -Monitor feeds for keywords. For instance, "Microsoft, Yahoo" to keep up-t0-date on the latest merger/takeover news.
(12) SpokenText - Don't have time to read? SpokenText converts RSS feeds to speech and allows you to subscribe to them as iTunes podcasts. Again, pretty cool!
(13) RSSMixer - Merge multiple feeds into one master feed and accessible from any feed reader.
(14) AideRSS - This is your RSS-assistant. Takes your hundreds and thousands of stories waiting to be read and applies a filter, leaving only the most popular stories. Sort of like your personal digg.