One of the most important jobs for a site owner in
Windows SharePoint Services 3.0 is managing who can access resources. Permissions for a SharePoint site can be set up in countless combinations. This adds to the product’s flexibility, but it also places responsibility on site owners to understand how permissions work. Windows SharePoint Services uses Windows authentication to authenticate users. Site owners can either add Windows user accounts directly to a site or they can add user accounts to SharePoint groups, which have common privileges wherever they are assigned.
It is important that all users who will be site owners have a complete understanding of how to manage security for a SharePoint site. To learn more about the security mechanisms in Windows SharePoint Services, view these computer-based-training lessons presented by Mindsharp:
About Mindsharp

Mindsharp, a Microsoft Gold Certified Partner, is a global education company that shows organizations how to use Microsoft enterprise technologies to achieve powerful business solutions. Mindsharp offers a full line of comprehensive training courses that target the needs of executives, end users, administrators, developers, designers, and architects.
Mindsharp’s instructors, including Microsoft Most Valuable Professionals, teach clients to increase productivity using secure and scalable collaboration, communication, and messaging services. Mindsharp’s portfolio of educational products and services includes design and planning sessions, public training events, on-site training, electronic courseware for in-house training, computer-based training, and online instructor-led training.