HelpCan I create a new thread with this?

I wanted to share a couple sites that I use when creating emails for making alts. They make creating them much faster since you don't have to actually register an email with sites such as "Yahoo, Google, etc..." Am I allowed to create a thread like that? I noticed it says right above where I'm typing now "outside linking" is not permitted. If there is a different spot I could post this, which section is it? Thank you for your help.

Shouldn't be a problem so long as it isn't a rival site or it leads to other rival sites. And don't forget to include 10minutemail and mailinator