I've put together 14 high-quality original podsafe instrumental tunes from my Penmachine Podcast into a CD album you can buy. It also includes a bonus data DVD with a bunch of cool stuff that isn't on this website. Find out more...
Visit Bookmarklets.com. Lots of neat little browser thingies there.
Macworld has a good face-off of current Mac browsers. Turns out most are pretty good, with Internet Explorer edging out the rest in their review. I prefer Mozilla, but they all (for the most part) do the job. If you want to go really old school, try Lynx.
A couple of months back Macworld also reviewed e-mail clients, recommending Eudora and Microsoft Entourage, which is what I use. Apple's free Mail (included in Mac OS X) and Bare Bones's Mailsmith are also good for totally different types of users -- light e-mailers and heavy searchers who prefer plain text, respectively -- while there are many other options out there worth examining.
Thanks to the contributors to the EAC and TidBITS mailing lists for the pointers.