Earlier this month, Web 2.0 uberblog launched a job board for people trying to get cool Web 2.0 gigs. Today another A-list tech blog, GigaOm, went public with its job board. The GigaOm blog traditionally has run excellent commentary on networking issues (VoIP, Wi-Fi, and so on), and chief blogger Om Malik expects his job board will lean towards jobs in those markets, although at the moment the nascent board has primarily Web development postings on it.
If you're looking for work in this online economy, you should also check out the boards at 37signals and PaidContent. To cast the net as wide as you can, try job ad aggregators SimplyHired and Indeed. Also explore Jobster, which features an interesting community as well as aggregated listings.