SexyBookmarks is no longer being actively maintained. It was a port of Shareaholic for WordPress, and Shareaholic has since released an official Drupal module.
Select an imagefield/filefield from a content type to serve as user picture (avatar). On selected content type node update, such as when a user saves his content profile, user picture is being pointed to the first file in the filefield.
The module integrates into user picture settings form and hides irrelevant settings. All user picture properties such as file size and dimensions requirements, default image are managed by imagefield/filefield.
Inspired by #470004: User avatar via CCK imagefield.
General usecase
With Content Profile module and an imagefield/filefield attached to the content profile type first image in the field becomes the user avatar. If the field has multiple values you just need to instruct users to reorder images.
This module provides a smartqueues based on avaliable content types. It adds a subqueue per node of selected content type to hold an ordered queue for nodes of another types. Any of these types can be used for smartqueues as well to hold additional levels of nodes grouping. So you can build very complex informational structures powered by handy Nodequeue's features and integration.