It's easy - just select the desired access level, copy this link and send it via email, instant message, etc.Link: Just a link to your wiki. Post this anywhere and people can ask you for the invite key.
User's Homepage
There should be an obvious list of links to the community stuff. I couldn't find any way to see other users' public posts until doing WAY more research than it should have taken. - Ryan English
+1, although I would also suggest using some of the Fan Projects like powncified(website), Powncified(pownce profile), etc. to find new pownces/powncers - Matt R.
A list of links to cool areas, such as the public notes page, mobile page, mobile events page, etc. - Ash Laws
Ability to toggle the national flag on/off. - Ash Laws
'Other Profiles' column to be sorted alphabetically, instead of the order you add them. - Ash Laws
Ability to set the number of notes viewable on one page other than the set default. - Ash Laws