We’ve recently created a new radio signal identification guide over a www.sigidwiki.com. This is a wikipedia styled site which is editable by anyone. We hope that some readers will make a contribution by adding new reference signals, fixing mistakes or identifying unknown signals. Any comments or requests about the page are also welcome.
You can still contribute known or unknown signals to rtlsdrblog__AT__gmail__dot__com and I will add them to the sigidwiki myself.