For me, running a shared iPhoto library is a bit of a hassle. Here are the mundane tasks I go thru in order to import photos into my shared iPhoto library.
With the help of Photo Importer you can reduce this to only 3 steps.
*In my case, Photo Importer is watching a Dropbox folder As mentioned above, Photo Importer is capable of importing files from any other sync service, as long as it has a local storage on your mac.