What Tools Exist for User Published Content?

wbav asks: "Recently there's been a trend to user published content. A couple of examples of this trend include Wikis, Podcasting, Blogs, and the resulting RSS Feeds. Last night I was asked if any other similar technologies exist. As I did not have a good response, that is my question to the slashdot community. Are there any other similar technologies which deal with user publishing that I have not mentioned?"

Comments

What about eBooks?

[joelsanda]

All of your solutions are about publishing on the web, with the possible exception of podcasting, which you could argue is mp3 player-based. What about ebooks? There are several available for most major PDA platforms, some that WYSIWYG based and others that import from ASCII or HTML.

Mostly everything.

[SharpFang]

There's very few web features that aren't available as a way of delivering user content.
WWW - everyone can have a webpage.
FTP, all of the P2P - everyone can host files they have made themselves.
Forums, BBS, Message Boards, Mailing Lists - based on user content.
IRC, chats - nothing more pathetic than a dead chat without users.
Banner ads - all the "banner exchange" style stuff brings it into users' hands.
Blogs - user-content journalism.
eBay - user-content e-commerce.
Development sites like SourceForge - user-content software development ;)
del.icio.us - hell if I know what it is, but it's all user-content.

Think of mostly any service or feature of the online world and you'll find user-content counterpart easily. I'd be hard-pressed to find domains without user-content. Ones I could think of... reserved for corporate customers - say, "Microsoft Channel Bar", mostly dead by now, or Windows Update... no, nope. The user-content counterpart for this is called malware.