REST

hughw's blog
Architecture of web services and the semantic web. REST/Relational perspective.
http://hughw.blogspot.com/

Paul's REST Resources
Articles and links on REST and related technologies.
http://www.prescod.net/rest/

REST - Representational State Transfer
Roy Thomas Fielding's PhD dissertation "Architectural Styles and the Design of Network-based Software Architectures".
http://www.ics.uci.edu/~fielding/pubs/dissertation/top.htm

REST for AOLserver, PyWX, and Quixote
Document by Dave Kuhlman provides an introduction to REST plus suggestions and instructions on how to deliver RESTful applications on top of AOLserver, PyWX, and Quixote, possibly with help of a relational database such as PostgreSQL.
http://www.rexx.com/~dkuhlman/rest_howto.html

RESTLog
A weblog application that tries to follow the REST architectural style.
http://bitworking.org/news/RESTLog_Overview

sqlREST
Tool for exposing relational databases as REST style Web Service
http://sqlrest.sourceforge.net/

Waterken Web Services
A model for building an application network interface that follows the constraints of both REST and capability-based security. Specifications, tutorials, white papers and programmer documentation for Waterken Web calculus and abstract messaging protocol.
http://www.waterken.com/dev/Web/