Apparently the new Google Code Search thingy can also be used as a repository browser. This is a screenshot of the DWR repository:
There are several options I know of for browsing open source repositories:
Usually the hosting provider will have one. Both java.net (DWR/java.net example) and Sourceforge (DWR/sf.net example) use ViewVC.
Both look poor in my opinion, are slow, don't give you anything but source view, but are totally up to date.
- Cenqua makes their excellent FishEye available to open source projects. Screenshots don't do it justice - see the DWR/Fisheye example.
It looks much nicer, gives you nice "who-changed-it" and "how-is-it-growing" type features, but it is a bit slow and lags CVS by a day or so.
- And now Google Code Search (DWR /Google example).
I think it wasn't really designed for this use, so the URL is terrible and there's no index of projects (that I know of), but it is way quicker than the alternatives, and it doesn't look as bad as ViewVC.