i sort of knew these existed but never tried one.
i just tried friendfeed this morning and its ease of signup is amazing. in 60 seconds i had it configured to read from this blog, twitter, flickr, youtube, delicious, and netflix. now i have an activity stream. i think its html layout could be much improved. there are other services too, like readr.
i read that facebook just made a very smart move. the facebook minifeed now takes external RSS feeds. so i could assemble the same sources of information into my facebook feed. given that i've already built up my social network on facebook, i could see wanting to do that. friendfeed expects me to start from zero, again. social network fatigue. they should be looking at the home pages that I'm configuring it with for XFN links and populating my social network automatically.