Ladies and gentlemen (or any other identity), I present to you the semi-official recording of what plugins are being ported over to Sponge from Bukkit and Spigot. This list is completely community driven. It is updated as often as the two maintainers can manage (@Lemonous and @BlizzardFyre).
The list is VERY full and has almost 500 plugins already requested with the majority of them having their status posted.
IMPORTANT - I request at this time that ONLY people announcing that they are porting their plugin over post in this thread. People keep posting repeats without checking if they are already added to the list. For the sake of @Lemonous's and my sanity, please try to avoid doing this. If you want your plugin added to the list to keep users updated on what is going on with your plugin, PLEASE PROVIDE A LINK. From experience of trying to hunt down plugin pages, I can tell you that this will save us so much time.
If we do not add your plugin to the list as quickly as you would like, do not repost about it. We will add it as soon as we can. ALSO please tell all of your friends about this link so the entire community can keep updated.
Hope this helps out some people!
~BlizzardFyre and Lemonous