I recently noticed traffic on this site looking for my Using Wireframes article (my most popular post to date) posted on my old, now-retired blog, strangesystems.net. The article provides an overview of what wireframes are (from a web design, information architecture point of view), some guidelines on how to create them and some Visio and Omigraffle templates and stencils.
I think the issue rose from the fact that at some point both strangesystems.net and strangesystems.com both mapped to this old site and people have links pointing to when strangesystems.com was strangesystems.net.
Also worth mentioning is Scaled Visio Wireframes Stencils & Templates, one of many articles I wrote on the User Experience & Design blog while I was at Forum One Communications. This is more like a follow up to the Using Wireframes article, taking into consideration feedback from our developers who complained that wireframes are often misleading and hard to implement since they aren’t properly scaled.