Now also our public RSS Bandit forums at http://www.rssbandit.org/forum has feeds: http://www.rssbandit.org/forum/rss.asp (returns top 25 recently posted topics). You can have a look to the rss content to get infos about how to limit postings or subscribe to a special subsection.
And: today I found I can also read feeds from my local living region: http://www.szon.de/xml/rss_info/?SZONSID=7831f2ef8071d0bee0cef8ff4ecf284c (Schwäbische Zeitung, local news).