How does SVN work?

I was gone for a while cause someone hacked my account and stuff. So no that I am back I’ve been seeing SVN stuff everywhere for updating and such. So my question is: How does it work? and How Do I download from it?

Wiremod has a nice guide for it : http://www.wiremod.com/forum/wiremod-general-chat/4-wiremod-svn-guide.html

I havent read that guide, so I dunno if it has a list of hosts. Me and a friend use google code to host our SVN. Although I am sure there are a slew of others, but google does almost everything well, so I’d recommend them if you need an SVN host for the cost of free :stuck_out_tongue: