Semantic Web Tools..

Semantic Web Development Tools: Introduction
General Development Environments, Editors, Content Management Systems, …
RDF Triple Store Systems
Programming Environments
Multilanguage environments
Java Developers
Python Developers
C Developers
C++ Developers
C# and .Net Developers
Javascript Developers
Tcl/Tk Developers
PHP Developers
Lisp Developers
Obj-C Developers
Prolog Developers
Perl Developers
Ruby Developers
Haskell Developers
OWL Reasoners
RDF Generators
On-line Validators
SPARQL "Endpoints"

http://esw.w3.org/topic/SemanticWebTools#head-805c63479c854babe4657d5184de605910f6d3e2