Website - Causing Fradulent Emails?

Ever since I joined a few developer forums and posted my website address, I've been getting so many fraudulent emails everyday appearing to be sent from legitimate domains. Apparently, emails are also being sent as if they are coming from my account as well. Anyone have any idea what I should do besides changing my passwords a billion times? Could the problem be from storing my ASP file, which processes my contact html file, in the same directory as my html files? Even if a hacker tries to view my asp file (which has my email address) by entering the asp file URL directly, it should still just redirect to an html page. Can hackers easily get into our web-ready directories? I’m not sure what’s going on but as soon as I get to the bottom of it, I’m pressing criminal charges on everyone involved. Please let me know if you have any suggestions

Anywhere on the Internet where you write your email address like me@domain.com, spam bots searching the Internet find them and add them to large databases, to which spam is sent often. There's not really much you can do, except install spam filtering software and keep your email address private. Also make sure that if you need to post your email address, do something like this:

me [at] domain [dot] com

Humans can still understand this, but bots probably won't detect it.

About your HTML/ASP files: if the email addresses are directly available from the Internet, it is possible that they may have been detected and added to spam lists.

open some free emails at yahoo, and sepearte your emails, maybe one for friends, one for business, one for leave at forum. so in the future, when you find some emails get too many spams, just leave them, create new ones

Hotmail now has probably the best e-mail system where you only get e-mails allowed through if the senders are on your chosen list.

Not to alarm you but there are nasty things that do what you describe :
WORMS i.e. W32.Sobig.F@mm here is but one link to info http://www.sarc.com/avcenter/venc/data/w32.sobig.f@mm.html
VIRI-i.e. KLEZ and PLENTY more http://www.connectusa.com/helpdesk/virus_top.htm
"spoofing" here is but one link to info http://www.cert.org/tech_tips/email_spoofing.html

It could be the same thing that happened to me, have you ever been to house of fusion, dont go, they do that, I accidently spammed their board with my auto-reply when they had me subscribed to some crap that i didnt sign up for and they tried to trojan me up, in your webpages encrypt your email, in your whois put a fake ole' email or protect it, register fly is good at that or conact your admin for your domain (registrar) and see if they can provide protection. 3. dont piss off any of these forums we will attack, not not really, but people have bots that do that and its not fun, get norton anti spam, mcafee anti spam, or the best which is what I use Mx Logic (web based spam / virus proection)