You know, we really don’t care whether this promo campaign qualifies as PR or marketing. It’s just really cool. The UK-based Arc firm (part of the Leo Burnett Group) came up with a unique way to promote online tutoring company The Tutor Crowd: create a tumblr page all about spellchecking London street graffiti! Here are some samples:

The idea is that parents will see the stickers around town and get the impression that The Tutor Crowd is a little hipper (and therefore more effective) than other educational services companies. There’s more on the page itself (warning: some of the language in the original tags is NSFW). We wish we’d come up with this one.