Inbound links increase 300% overnight

In a truly bizarre surprise my inbound links have increased from around 200 to around 800 overnight.
The main culprits appear to be search results from map websites combined with my comment popping up as a recent comment on someone's blog.

While this is good in some ways it is terrifying in others. In particular it may look like a sudden link building burst.

If it gets me in trouble I'll let you know.