I develop sites as a freelancer at nights & weekends and if you want a simple site, there's the usual suspects (Y!, geocitee etc) but I find that for specialized applications that actually do something (a full application) you really have to dig around; especially for free tools. Here's some tool sites I keep booked marked for theses occassions. Let me know if you guys come up with more because I'm always looking for sites that help with my freelance work:
For [A href="vny!://www.createappointments.com/"]free appointments[/A], for [A href="vny!://www.createonlineforms.com"]web forms[/A], for [A href="vny!://www.findnewspapers.com"]free classifieds[/A] and finally for just [A href="vny!://www.createsites.com"]general web applications[/A].