Ask HN: We need a search functionality for the site

This has happened at least 5 times this week alone. I remembered reading a HN thread, but don't know the link and always have to search for it through google. This will be a great improvement to this growing site. What do you guys think?

At the bottom of every page there's a link to "Search". That takes you to a Google search restricted to this site.

Alternatively, as someone else has said (and this is what I always use) there's http://searchyc.com

PG says he's working on a search facility, but I really don't understand why he doesn't simply give his blessing to http://searchyc.com - I think it's great for the job.