A number of people wrote to tell me that John Norstad has released NewsWatcher 2.0b3 shortly after TidBITS-233 came out, mentioning 2.0b2. The Internet moves quickly, and something in one issue may be out-of-date by the next (although I'm usually correct as of the day the issue is dated, since I check URLs during editing). You can get NewsWatcher 2.0b3 (and subsequent versions in the same directory) at:
Mac OS X Services in Snow Leopard
Mac OS X Services let one application supply its powers to another; for example, a Grab service helps TextEdit paste a screenshot into a document. Most users either don't know that Services exist, because they're in an obscure hierarchical menu (ApplicationName > Services), or they mostly don't use them because there are so many of them.
Snow Leopard makes it easier for the uninitiated to utilize this feature; only services appropriate to the current context appear. And in addition to the hierarchical menu, services are discoverable as custom contextual menu items - Control-click in a TextEdit document to access the Grab service, for instance.
In addition, the revamped Keyboard preference pane lets you manage services for the first time ever. You can enable and disable them, and even change their keyboard shortcuts.