Lists are ordered, typed data. Everything in SharePoint is a list. This includes surveys, calendar items, announcements, and even document libraries. * If you can store it as rows and columns, with one unique item (i.e. record) per row, it can be a list. You can make your own custom lists, and should. * SharePoint thinks document libraries are very special, and tries to hide their list-ness from you. Whether or not it should be ashamed of their actual background, this makes treating them like regular lists somewhat problematic (i.e. impossible.) SharePoint Lists
Consumes and displays list data in a friendly, highly customizable way. It considers many things to be lists, including Excel files, Access databases, and most of SharePoint. Much more powerful than were going to cover today, but its worth a close look if you do much data entry. Installed as part of Microsoft Office Premium, but needed if youre going to create forms. InfoPath
Prepare to be Dazzled If your threshold for bedazzlement is moderately low.