Ron Conway’s Confidential Investment Guide: The Tech Megatrends
techcrunch.com
techcrunch.com
Sure, that's his manifesto to fund now (ie companies funded today probably were founded chosen 6+ months ago, and those ideas would be fresher then). Plus he gets to pick the cream of the crop.
But would anyone on HN seriously consider starting a startup today based around check-ins or a Groupon clone? Both spaces seem totally done to me - there are plenty of startups in those spaces and so you can only compete on niche (thus smaller market) or if you can totally disrupt with a genius idea (unlikely). And in both of those areas (and others in Conway's list) you have first mover advantage and network effect against you.
Seems to me the trick is to consider what will be on his next list and start working on that now.
Maybe the steamrolling Zynga of the Groupon space hasn't yet arrived.
Knowing Conway's investment guide in no way qualifies you to pick the right people or ideas to invest in. It's a Chinese Box, and you don't speak Chinese.
(You know, for metaphorical instances of 'You' and 'Chinese'.)
Edit: It's the Chinese Room Argument by John Searle - http://en.wikipedia.org/wiki/Chinese_room . Searle saw it fit to give the man a whole room to complete his tasks!
Edit: I guess it is backwards. I just contradicted myself. time for bed.
I'd say Conway is also behind the HN curve because of what he does. An angel usually comes into the picture months or years after the team has formed and a few ideas have been hatched, iterated, and pivoted upon. So my answer to the question is, probably YC and its clones, and a few companies like Google who work very hard at fostering innovation - the common thread being a focus on picking good people.
Social? Flipboard is primarily a consumption experience with limited commenting and sharing mechanisms. Granted, those features exist, but are not the key focus.
Mobile? Because it's on an iPad? I wonder if Ron is actually talking about in-your-pocket iPhone, Android, Blackberry, etc. and not larger laptop replacement products such as tablets.