Drup.org

Installation:

Quick intro (but use htpasswd not htpasswd2) http://www.howtogeek.com/howto/ubuntu/install-subversion-with-web-access...
Better guide: https://help.ubuntu.com/8.04/serverguide/C/subversion.html
Excellent guide: http://queens.db.toronto.edu/~nilesh/linux/subversion-howto/
4 minutes: http://www.tonyspencer.com/2007/03/02/setup-a-subversion-server-in-4-min...
CentOS 5: http://www.daniel-skinner.co.uk/setup-subversion-and-trac-on-centos-5/06...
and: http://svnbook.red-bean.com/en/1.0/ch06s04.html
Running a Subversion Server: http://www.linuxfromscratch.org/blfs/view/svn/server/svnserver.html
Personal server: http://lifehacker.com/software/subversion/hack-attack-how-to-set-up-a-pe...

Usage:

Cheat sheet: http://www.abbeyworkshop.com/howto/misc/svn01/
Official guide: http://svnbook.red-bean.com/nightly/en/svn.intro.quickstart.html

Free services:

http://unfuddle.com (200 MByte)
http://cvsdude.com (2 Mbyte)
http://code.google.com (1 GByte)
https://www.devjavu.com
List of services: http://snook.ca/archives/servers/hosted_subversion/

Odd commands

svn mkdir https://amf-writing.googlecode.com/svn/trunk/ --username drewfn@gmail.com -m "create trunk"
find ./ -name .svn -exec rm -rf {} \; #remove all .svn directories (ignore the errors, it deletes the directories before it can search them
find ./ -name .svn -exec echo {} \; #check they are gone