RSN Stitch Bank
The RSN Stitch Bank has been launched to mark the 150th anniversary of the RSN. It's aim is to digitally conserve and showcase the many and varied stitches in the world. Starting with an initial 150 stitches, with full diagrams and information on each stitch, this database will be continually added to.
It's free to use this excellent resource and it's only going to get better!