Freeware Shorts: NoteFly
NoteFly (Version: 2.0.0 RC1 as of this post) is a sticky note application that offers a few features to store and manage notes. Sticky notes that are viewable on the desktop can be re-sized, use different colors and also be transparent. A note can also be ‘stuck on top’ and remain visible or locked or hidden.
It is also possible to set up NoteFly to email a note and to tweet or post the note on Facebook. The latter seems to be buggy and/or not possible as of this post but that may change in a future version.
NoteFly is only around 200KB, does not use the Windows registry, is open source software and requires the .Net framework 2.0 which is already installed on Windows Vista and 7.