Most of the single-file mods and add-ons are in the Files section of the Facebook group too. If anyone has others they would like to add there, feel free to upload them there also. There are also guides and other useful bits.
If you upload multiple part files, please try to name them so that someone will know to get all the parts, i.e. FLUXWidget 1of4, FLUXWidget 2of4, etc. Facebook is lagging on the file management interface.