Now I'm beginning to get paranoid...

I literally get over twenty emails per week from "PayPal" and "Ebay" customer representatives. According to them, my account is continually under threat of being suspended and/or vulnerable to haxxors. To reiterate, I have never knowingly signed up to either service. Increasingly, however, as I see a few seemingly authoritative emails, I wonder whether some of the online services that "Jackmormon" has signed up for might not have involved a genuine automatic registration with one or two genuine services.

(Don't worry: I remain skeptical enough of all of these emails to delete almost all with even opening them, and I've never opened an attachment or sent any information--knowingly--to anyone.)

So here's the question de jour: does anyone know whether opening a blogger account registers one with either PayPal or EBay? does opening a yahoo email account trigger such mechanisms?

With blog comments, these are practically the only exposures my email has. Any thoughts?