It isn’t often that one can find a great list of problems and try to attack them head on. Paul Graham over at the famous Y Combinator has created just such a list. While not comprehensive, it certainly is an extensive one.

Which ones do I love…?

Auctions - There’s no question that Ebay holds a stiff monopoly on the category. However, new sites have been popping up all over the place and there’s definitely room for someone to come in and offer a free or meaningfully cheaper solution. Craigslist anyone?

Startups for Startups - Of course! As startups continue to multiply because of decreasing initial cost structures, infrastructure around these businesses will continue to develop.

Which ones do I hate…?

Search - Let’s face it. Google is the king of search because it has monopolized search’s cool factor. While search is Google’s core driver of revenues through its Adsense product, it has diversified its business into multiple other sites (e.g. Orkut, YouTube) to maintain its users attention span. There will be a great search business that will come along and steal Google’s thunder, but I don’t know that it will be because of Paul Graham’s theory of poor Google design. There will be a dramatic shift because the new company will be THE place to do search. (Powerset anyone?)

The WebOS - Hasn’t this already happened?