Today’s featured promo on MacUpdate offers iSticky for US$10.95 (54% off, retail $24). “Sticky is a tool that combines the usefulness of little desktop notes with the power of the Internet or even your own local area network. Sticking a note on the desktop of your colleague, friend or relative has never been so simple. Using the internet service is free of charge.” iSticky requires Mac OS X 10.3.9 or later.