Browsers.com Update
Everything you ever wanted to know about your Web browser. CNET will alert you to new browsers and security holes.

ChangeNotes
A free service that monitors Web pages, sending you an e-mail when they change.

Extra! Extra!
A Weblog of investigative articles, mostly in the US, from Investigative Reporters and Editors and Derek Willis.

Internet Scout Report and Net-happenings
Of course, there are alert services to keep you up to date on new Web sites. This is the best. Published every Friday by E-mail and on the Web, the Internet Scout Report is a rolling best of the Net, with materials selected and annotated by librarians and subject experts.

ResearchBuzz
Tara Calishain's newsletter on Web research: new sites and dissection of search tools.

Romenesko
Everyone's favorite media gossip site. Sponsored by the Poynter Institute.

Scout Report Signpost
Culled from the Scout Report newsletters, Signpost is a searchable directory of 8,000 of the best Web sites, in many topics. One of the sites you would take on your desert island trip.

Spyonit
"Spyonit simplifies life online by helping you stay on top of the things you care about. You tell a 'spy' what to watch for on the Internet, and when something changes, it reports back to you wherever you are: by e-mail, instant message, mobile phone or PDA."