Suddenly I get numerous 'newsletter subs ... / 2009-09-30

Suddenly I get numerous 'newsletter subscription' mails in my inbox, some declaring I subscribed and some asking me to confirm my subscription.

Samples:

Subject: You've Been Subscribed to iVillage!                                    

You have been subscribed to:

• YourTotalHealth Special Offers • Beauty & Style Top Ten • YourTotalHealth
Community Challenges 

Subject: Mind Tools Newsletter - Please Click Link to Confirm Subscription...   

Thank you for taking the first step in subscribing to the Mind Tools
Newsletter! There's just one more thing to do before your
subscription is activated,

Welcome!                                                       

Dear rty6ry,                                                                    

Welcome and thank you for subscribing to the Food
Reference weekly newsletter.   

Dear fyhfhfg,

Thank you for subscribing to UNESCO's Communication and Information Sector
newsletter.

We have registered your subscription with these details:

First Name ftgrt
Last Name  dggdf

I must have really pissed off some spammer to get some personal attention like this. GOOD. A spammer getting all worked up isn't spamming.
Too bad none of the mails tell me which IP address I 'subscribed' from, although I have a vague idea I need to search in the area of Heerlen / Kerkrade in the Netherlands.

All the subscriptions without confirmations will be reported as spam naturally.