OwlForServices is OWL-S specification passed to W3C for ratification in Nov 2004. OWL is WebOntologyLanguage and the Services refer to WebServicesDescriptionLanguage, which is used to describe WebServices for machine consumption. See http://www.w3.org/Submission/2004/07/
It appeared the OWL-S submission came from http://www.daml.org DAML (DARPA Agent Markup Language) has interests in SemanticWeb development and more information is found at http://www.daml.org/2002/04/why.html.
Resources for SemanticWeb WebServices
http://www.dcs.shef.ac.uk/~barry/WebServices/
relationship to other technologies such as BPEL, ebXML, etc at http://www.daml.org/services/owl-s/1.1/related.html