"Web 2.0" refers to a perceived second generation of web development and design, that facilitates communication, secure information sharing, interoperability, and collaboration on the World Wide Web.
(Emphasis on the subjective mine.)
Design, no; communication, half-way; secure info exchange, no; interoperability, no/barely; collaboration, a bit.
Web 2.0, lacking a spec or formal definition, is just whatever anyone sees as different online pre-2005-ish an post. PerlMonks, to me, doesn't even remotely qualify.
Which is not a critique of the site at all; just the proposed taxonomy. ELISHEVA, our blossoming culture maven, had a lot of thoughtful things to say keeping with the grain of the OP, though, which was nice to read and made the thread.
Web 2.0 websites typically include some of the following features/techniques. Andrew McAfee used the acronym SLATES to refer to them:
The ease of finding information through keyword search.
Ad-hoc guides to other relevant information.
The ability to create constantly updating content over a platform that is shifted from being the creation of a few to being constantly updated, interlinked work. In wikis, the content is iterative in the sense that users undo and redo each other's work. In blogs, content is cumulative in that posts and comments of individuals are accumulated over time.
Categorization of content by creating tags: simple, one-word user-determined descriptions to facilitate searching and avoid rigid, pre-made categories.
Powerful algorithms that leverage the Web as an application platform as well as a document server.
The use of RSS technology to rapidly notify users of content changes.
Other than the extensions, PM has all of the above, and has done for a long time.
No one loves this site more than I but I disagree and that's sort of the point. It's a subjective term. Therefore I'm right. No tag backs.
The search was until recently terrible. Now it's just awful. I only use Google to search PM. The site has no tags or tagging. "Links" is unambiguously Web 0.5 Beta™. And authoring...? You mean like putting content online and then changing it? The concept of a forum and moderators is also firmly rooted in the old web. This forum happens to attract an especially (fill in the complimentary blank) community of users. I'd argue that has more to do with Perl than with the Everything engine.
Again, I adore this site and I don't think it needs to be changed. Arguing it was the original 2.0 is goofy. On the subjective nature of the 2.0 thing, I think if you brought 100 devs, Tweeters, and their ilk who didn't know Perl from Python, you'd get at best 2 or 3 who would agree PM is 2.0 now let alone was in 2001.
Thanks for pointing this, it was exactly what I meant... I just wanted to point out that there are several extensions to the Perlmonks.org site that provides usefull information and are also around for a while already... (I don't recall every case, just googled around for two minutes).