Weird Spam

I’ve been getting a ton of comment spam today, but it’s very strange spam. All the links go to different places (Forbes, Bloglines, Sciencedaily) that don’t seem like the types to be comment spamming.

Usually the first sentence or two is something like “Found your site very useful”, “Cool site! Be back soon!”, followed by some nonsensical sentences with the links to these weird sites. I got about a dozen of them, all posted around 10-20 minutes apart. I don’t have any captchas to crack, so I’m not sure what the delay is about.All

the posts are from different IPs, using different email addresses, and different home pages (again, pointing at the same sorts of inoccuous sites)

Is anyone else experiencing this, and does anyone have insight onto what would be the purpose?