On Reddit, Digg and Hacker News
antoniocangiano.com
antoniocangiano.com
That said, the rise of me-too .com hives give others the opportunity to improve, but are they really making significant strides in innovation that are lasting and unique? For example, Digg significantly improved an old concept from the early 00's known at 'top sites' by shifting focus to relevant content as oppose to site-specific. But, what have followers of the Digg model offered besides servicing a niche audience?
When this same me-too trend happened in web 1.0, funding dried up for a few years while the internet cleansed itself...
I find readwriteweb.com to be a better source for start up news. You can see they put in sincere effort writing up those analysis.