SharePoint 2010 farm topologies

• http://programming4.us/enterprise/3492.aspx , discussion of three supported topologies: Single Data Center High-Availability Model, Cross-Site High-Availability Model, and Multiple-Farm Cross-Site Model.
• http://technet.microsoft.com/en-us/library/cc263199.aspx , technical diagrams of recommended solutions.
• http://www.microsoft.com/en-us/download/details.aspx?id=6096 , common ways to build and scale farm topologies.
• http://www.techbubbles.com/sharepoint-2010/sharepoint-2010-farm-topologies/ , nice explanation of basic terminology.
• http://sharepointsolutions.com/sharepoint-help/blog/2011/02/how-to-scale-out-a-sharepoint-2010-farm-from-two-tier-to-three-tier-by-adding-a-dedicated-application-server/ , scale out from a 2-tier farm to a 3-tier farm.
• http://www.sharepointedutech.com/2011/01/02/topology-med-sp2010-farm/ , topology and licensing example of medium farm.
• http://www.astaticstate.com/2010/07/sharepoint-2010-physical-topology.html , examples of diagramming SharePoint topologies.
• http://technet.microsoft.com/en-us/library/ee805948.aspx , 3-tier farm.
• http://mscerts.programming4.us/sharepoint/Topologies%20for%20SharePoint%202010.aspx , discussion of basic types of deployment.