As blogged by Ben Forta, Paperthin recently released version 4.0 of their CMS product, CommonSpot. As some may be aware - one of the sites I work with, PGA.com, uses CommonSpot. When Turner Sports Interactive (who manages PGA.com) first talked with the folks at PaperThin, we requested/suggested several features in the product. Two of these features were popular requests they had also received from other customers, and have been included as new features in version 4.0. XHTML Support - While older versions of CommonSpot work well in all browsers, they didn't come close to validating as proper XHTML. They've done alot of work towards producing valid XHTML, which isn't a small accomplishment when considering the complexity involved in the 4,000+ files in the CommonSpot application. Static Site Generation - Scaling a CommonSpot application out across several servers can get expensive when you consider the CF/CommonSpot licensing fees involved on the extra machines. Static site generation makes the product far more viable for sites with heavy traffic by allowing sites to be generated as static files and copied over a large number of webservers.