It had to come, the systematic use of blogs as a way to gain attention through non-personal networks.
First we had the commentary spam. It showed up at this blog as well, even if people need a blogger account to post. Here it took on the nature of "I love your blog, have a look at mine".
Then we had (and probably still have) paid blogging and promotional blogging. Commercialisation is inevitable, when a good blogger sees a way to make money doing what they know how to do and like.
Now there's the "high-class blogs" thing. That may be serious, perhaps there is somebody out there who really want to show off good blogs. It looks like spam though - now that I have received the same message in email and in the commentaries. I guess if you manage to generate a lot of traffic through links of the nature "I was asked to submit this to high-class blogs", you get a portal which then efficiently points on to other blogs, no matter what the quality of said blogs is. Flattery works, that's the main lesson of the Nigeria-scam mails.
The next version was through email as well. This was the press manager of an English artist, who is writing the writers of art-themed blogs. I never noticed "art" as a particularly well-promoted feature here, but I guess I have said the word once or twice. They suggested a link exchange, very politely.
While not "squeeze my silicone tits", these suggestions have the flavour of spam - high-class spam perhaps (full sentences, no mention of sex or attempts to sell me viagra or a college diplomas, correct spelling), but still. Or perhaps I am doing people injustice, and this blog is just SO attractive that all these wonderful people are willing to send a lot of formula letters in order to make me notice them.
Yes, that has to be it.
(and steve (read the comments) has proved himself a spammer, and I have deleted his post in my comments. If you get hold of Faltin Karlsen, let him know his blog is being spammed.)