Recently active topics in GameLayers tagged with invites

Crossposted from the forum

I would love some way to provide a referral within an url link which that I can post to my webiste whenever I link to PMOG (As I do when, for example, I blog about a new mission)

Currently you can only invite through an email link and you can send the referral code to a friend manually (if you invite an a second email address you own, copy the link from there while remove the email address and giving them that) but it seems to expire after the first time.

This could be made a lot more obvious. Perhaps you could add a link on the top nav bar with a number of available invites like this: invites left (2).