Wikipedia:Five Year Society

What is the Society?
The Five Year Society is an informal grouping of editors who have been contributing to the Wikipedia project for five years or more (from or earlier). It exists so that editors can celebrate half a decade of contributing to a project they are passionate about, to help form connections between long-term participants in the encyclopedia, and to allow the sharing of perspectives and expertise. It is not intended as a form of one-upmanship, but as a good-natured recognition of enthusiasm and dedication. The Society currently has roughly members. [[ update] ]

Membership
Membership, as the name suggests, is simply conditional upon having been an editor for at least five years. In the original spirit of wiki cooperation as it began, membership is entirely optional and freely given. Any editor may suggest membership to or bestow membership upon any qualifying editor, who is welcome to accept or decline it. There is an invitation template that can be used to invite new members.

Members are listed at Category:Members of the Five Year Society of Wikipedia editors. Those who would like to indicate membership in the Society on their user page can use the User Five Year Society userbox.