Web Based OSS RSS Feed Aggregators
MonkeyChow – based on feedonfeeds, this one is updated quite a bit, you might visit the developer’s blog for current updates
Tiny Tiny RSS – This one is in active development also, it looks very good also, similar to how a offline Feed Aggregator might look, they have a online demo also
FoFRedux (feed on feeds – redux) – based on feedonfeeds, even though they have like 7 developers they haven’t released a new verison in a long time
feed on feeds – pretty much dead, despite the fact the developer stated he was bringing it back
Of course nowdays you can use Magpie, SimplePie to build your own popurls / Original Signal clone or use Pageflakes, Netvibes or Google Reader if you don’t want to build it and host it yourself.