Imagine a service that "will save your favorite search engine queries and web sites, check them periodically, and send you email whenever there are new or updated web pages."
Today's quiz question: When did this service first appear?
Thanks to the Wayback Machine, the answer is 1997. It wasn't quite that long ago that I used the service but I'm surprised at how similar it was to RSS (minus pictures and a couple of other features.) I don't know how they did it (some Perl with 'diff'?) but it was great to get information pushed to me whenever a website I was interested in was updated. Now I just track RSS feeds. Isn't it great how easy life has become?
FYI, the service was The Informant, now TracerLock. Instead of paying for TracerLock, I'm currently working on my own tool...)