Just got a new scam email today, saying my domain was expired and I needed to renew it right now for $75 or risk losing out.

Reading on, it says:

This letter is to inform you that it's time to send in your search engine registration for TEENGAYMOVIES.COM.
Failure to complete your search engine registration by Dec 3, 2010 may result in the cancellation of this offer (making it difficult for your customers to locate you using search engines on the web).
Your registration includes search engine submission for TEENGAYMOVIES.COM for 1 year. You are under no obligation to pay the amount stated above unless you accept this offer by Dec 3, 2010. This notice is not an invoice. It is a courtesy reminder to register TEENGAYMOVIES.COM for search engine listing so that your customers can locate you on the web.
And it goes to a site called newdomainregis (.com)

I used to get these posted to me about 5 years ago, looks like they have moved this scam to email now. So beware, and NEVER click a link in an email from an unknown sender (its a good habit to never ever click email links even from trusted sources, but instead just type in the real domain into your browser)!!!!