The RSS aggregation trend has pretty much flooded the web. I can load feeds into tumblr, jaiku, twitter, friendfeed, facebook, etc etc. This used to be a cool untapped market but alas, now people are signing up to sites and just using them as a place to dump all of thier feeds without actually using the service as it was intended. This dilutes lifestreaming in general and makes the whole concept just seem spammy. Eventually, these services will aggregate each other - creating an infinite loop of post-repost forever.