Recent My NCBI enhancements include the capability to create custom filters and to share a collection or bibliography. In addition, My NCBI now includes a feature to send an e-mail to users who have forgotten their passwords.
For those of you who are not familiar with My NCBI, it is a feature in PubMed that allows you to save searches and search results, which can be automatically updated and e-mailed to you. To sign up for a My NCBI account, go to PubMed and click on Register in the upper right-hand corner.