Social supports plruk now. c9s released Net::Plurk last week and I made AnyEvent::Plurk with it. Programming with AE feels really good, a much easier alternative to POE.
Besides that, as a heavy user of Social, I found myself desired to peek messages inside channels before switching to the channel page. Therefore, I added a dashboard page that displays messages from all irc channels, Twitter, and Plurk. Also, On the channel list page, the latest 3 messages from each channel is right there to be seen.
And they are all live-updated. That is, you can just stay on the dashboard page watching messages flowing by, which I found very enjoyable.