Several links with information on yeast or yeast slants

http://www.homebrewtalk.com/f163/slanting-yeast-133103/index15.html#post2286547

Cynmar vials referenced in this post seem to be ideal for yeast slants, and appear to handle autoclaving well.  Looked them up on the Cynmar website and they appear to be a pretty low-cost item as well.  Probably makes sense to order through them as A.) these don’t appear to be available on Amazon, B.) they also carry Erlenmeyer flasks at a lower price and possibly better quality than reviews indicated were likely to be seen from the brewing site I was looking to order from.

http://www.homebrewtalk.com/f163/slanting-yeast-133103/

Nice article on getting started with yeast slanting, including equipment recommendations and some good how-to information

http://www.maltosefalcons.com/tech/yeast-propagation-and-maintenance-principles-and-practices

Quite an in-depth reference to yeast health and how to build a starter from a slant.

http://bootlegbiology.com/diy/capturing-yeast/

Capturing wild yeast.

http://bkyeast.wordpress.com/2012/02/19/selective-media-part-i/

Selective culturing of various yeasts, with information on use of potatoes as an agar.