You should be able to provide examples without needing to quote FReepers. And If you read through some of those linked threads (some are Snopes links and some are FR threads about Snopes links), you will find even more examples (just follow the rabbit down the hole).
The more you can do to quote Snopes' own statements, rather than a FReeper's interpetation of their statements, the more people will agree with what you present as evidence of Snopes' bias.
I only learned about their take on the buses today (when searching for some examples). There was an FR thread. You might try searching threads for headlines with the word Snopes or keyword Snopes.
Yep---was really just planning to use the links. Just wanted to be polite about making use of the research efforts of others (tho' I suppose that describes most of scholarly history, at least postions thereof). Thanks. CC