A very nice sitemap, easy to use, and clean HTML.
Perfect to customize the looks with CSS in the way you want.

Provides a lot of plugins, for example JEvent and Docman.
And, until today, I didn't find a nice sitemap that works on Joomla! 1.5, but now I have!
Also a nice XML sitemap for search engines.

Weather-Online has even more sites then wetteronline and weeronline, (Check the bottom at the sites for the right URL's)
Also available for Belgium, United Kindom and Ireland, and Asia.
However, the plugin itself is written in German, so I've a 3 Tage forecast instead a 3 Days forecast.
So for non-German-speaking people it would be usefull to have an English version available, or an option in the Admin area to select a language.

It's working in Joomla 1.5 with Legacy plugin enabled.
Also with 1.5: When I set border to No, I see scrollbars. (Even with scrollbars on No)
When I set border to yes, the scrollbars are gone.
The scrollbars option doesn't seem to work.

A few improvements (And full 1.5 support? :) ) and its a wonderful component.