Right - that's a really good idea. We've been getting approached by people running these kinds of seminars who are interested to promote us, which is nice.
Doing our own seminars (online and offline) is big on our radar as well though.
Slightly related, I think you should make MakeLeaps a bit more visible in the Hacker News meetups, even if it's just a logo on the door or reception desk. Alternatively, hand out the stickers you mentioned in the article. I'm sure lots of us would be happy to stick them on our PCs to show appreciation.
Doing our own seminars (online and offline) is big on our radar as well though.