StupidFish Programming has released ShadowClipboard 3, the latest release of its popular shareware multi clipboard manager for Mac OS X. Version 3 offers many enhancements over the previous version, including unlimited clipboard sets, simple mode previews, clipboard content filtering, clipboard set backups, multiple screen support, a refined interface, better clipboard sharing support, brand new shortcut management and many more features. ShadowClipboard 3 is available for US$15 (upgrades from version 2 are $8).