Many of us on the YDN team use social bookmarking services like del.icio.us and My Web to bookmark and tag interesting stuff we come across. And, believe it or not, some of it is even related to what we're doing on the Yahoo! Developer Network (code, APIs, hack day, you name it).
I recently wrote a script that pulls those links from each service, finds those tagged with "ydn" and then adds them to our group linkblog. The links haven't been exposed yet on the site (that'll happen soon), but there's an RSS feed available.
If you're interested in seeing how it all works, I can put some code up and document things a bit more too.
I'd suggest that you post a comment, but we (and by "we" I mean "I") need to get comments turned back on here. Stayed tuned for that too. Until then, you can send email. How's that for self-motivation? :-)