The Minecraft Wiki
I worked as a volunteer moderator for 2 years.
I had to moderate user edits, ban users and make pages look better.
Job highlight
I was a big proponent of adding a "Herobrine" page. Herobrine was a fanmade ghost story character, who users used to plaster on the wiki as vandalism. After a long time of fighting to get him his own page, I finally got the greenlight to go ahead with it. With his own page on the wiki, "Herospam" dropped dramatically, as users no longer saw him as taboo. I was very proud that my reverse-psychology move paid off.
Various ModDB Pages
I am a volunteer moderator of several ModDB pages. Some I have only been working on for a few months, some, for a few years
I had to moderate user comments, filter out "junk" downloads and make the page look better. I also needed to upload news content periodically, to keep the page up to scratch.
Pages
Minecraft
Various Portal mods
The 7th Guest
Job highlight
I ran a "Quest for Cake" campaign for the Minecraft ModDB page, after asking Notch if he would add Cake to Minecraft, if it won the ModDB "Indie Game of the Year" award. Throughout, I teased with the campaign, and got a lot of notability. Cake is quite viral as a reward, ever since Portal popularised it.
My campaign got into the ModDB news reports on some of the best campaigns of the year, and the game came out as a winner of three categories.
while I know that it could have won the awards regardless, without my making the page for them in the first place, and the light touches of the campaign I ran, I like to think I helped them with the awards. Cake was then added into Minecraft.
MyAPERTURELabs
I worked as a volunteer moderator for a year.
I had to moderate user posts, ban users and make the forum a better place to visit.
Job highlight
I built the entire Off-Topic portion of the forum
For a long while, I maintained a constant moderation over Off Topic. It quickly became the most popular board on the forum, and had thousands of posts. I made games, moderated endless "last user to post" threads and generally kept the place as a happy, calm environment.
Unfortunately, I left the entire forum due to disagreements with other moderators over how Off Topic should be run. The forums has since shut down, and restarted as "MyAPERTUREInnovations". I still miss moderating such a fun, lovely board.