[furtivefelon]

google: search term site:news.ycombinator.com, it's very good, and it could be better than anything pg et al. can throw together in a hurry :D

[jacquesm]

From experience, it's not as good as a tailormade search like searchyc.com, they store a lot of meta data about stuff on the site and that helps narrowing down your searches considerably.