Open source
Free Web Layouts and Open Source Web Design Templates "a place to share and download free web layouts". They host templates for most of the open source publishing platforms, and there is a forum for discussing website templates.
CSS Tinderbox is a set of CSS based layouts for the common layout styles.
myhedspace.com is the online haven of jose erlino m. lontok, an open source web designer from carmona, cavite, philppines.
The Open Design Community (TODC) is a group of Open Source Website Designers providing hundreds of XHTML and CSS based free web design templates available for download. Some history of this project is given on the wikipedia links.
Open Web Design is a community of designers and site owners sharing free web design templates as well as web design information. Helping to make the internet a prettier place! Some history of this project is given on the wikipedia links.
Open Source Web Design is a site to download free web design templates and share yours with others. We help make the internet a prettier place. Some history of this project is given on the wikipedia links.
Open Source Web Templates is a UK based project founded in November 2005 as a site for users with no design skills to quickly put up a site and showcase their content and as a way for designers to share their designs and showcase their talent.
Commercial
Open Source Template Website Design Portfolio is a small set of free designs from a professional design house.
best-templates.com offers a range of web design templates.
Other lists
Open Source Web Design Templates & Tools on lifehacker.biz posted August 2007.
The Open Source Web Design Toolbox: 100 Web Design Template Sources, Tools and Resources on designvitality.com posted July 2007
99 Resources for Web 2.0 Design uh.. web2.0 isn't about design stylology, but in any case this is a list of newfangled newstyle design resources.