Is there a way to find out how many email accounts someone has?

I recieved a notification this morning that at 8:05am CST someone attempted to recover my account password. I recieved another email about an hour later that someone was trying to access my Windows Live account. Neither time was it me trying to access...

d-brown-_58@hotmail.co.uk Is there a way to track someone down by their email? find other email accounts attached to it? Anyway possible would help. Thank you.

I'm planning to get rid of a few (quite a few!) online accounts I have, that I've used this particular email address with. Ex. Facebook, Myspace, MyYearbook, "easybib.org" , and others. You know, like when it says "ENTER EMAIL ADDRESS...

For instance, if I have 4 email addresses I'm using, is there any way for someone to find out (via the internet) that they are all associated with me? Or is there any way for someone to find out my other email addresses?

I remember coming across a paid site like this before, but I've forgotten the name of it. Essentially I'd like to feed an email or emails to a site which returns all the public accounts / profiles (e.g. twitter, facebook, google+, linkedin, and many...

I'm usualy smart about these things but this one has got me paranoid I'm not certain if its real or not! "Virus Notification A DGTFX Virus has been detected in your yahoo.com folders. Your email account has to be upgraded to our new Secured DGTFX...

I made a fake email address for a fake Mrememberaccount but I can't remember the email address. Is there a way to find out the email address on myspace if it isn't displayed?

I'm trying to find profiles for the below email accounts. I tried to purchase a dog and was notified by Western Union that it is a scam and I can't get my money back. I'm hoping to find their profile to hand over to the police.