P & F Industries, Inc. Holding company with subsidiaries which import, manufacture and sell pneumatic hand tools for automotive, industrial, and retail markets. (Nasdaq: PFIN). http://www.pfina.com/

Paging Network, Inc. Provides wireless messaging and information delivery services. (Nasdaq: PAGE). http://www.pagenet.com/

Par Technology Corp. Provider of professional services and enterprise business intelligence software. (NYSE: PTC). http://www.partech.com/

Parker Drilling Co. Worldwide company which provides offshore and onshore contract drilling and drilling-related services. (NYSE: PKD) http://www.parkerdrilling.com/

ParkerVision, Inc. Designs, develops and markets an automated video camera control system and automated production system; And researches, develops and markets wireless radio-frequency technology. (Nasdaq: PRKR). http://www.parkervision.com/

Parlex Corporation Designs, manufactures and markets products for use in the interconnection and configuration of semiconductors and other components in electric equipment such as flexible printed circuits, custom laminated cable and assemblies of subsystems. (Nasdaq: PRLX). http://WWW.PARLEX.COM/

Paul Mueller Company Manufactures dairy farm equipment including coolers, pre-coolers, automatic washing systems and heat recovery equipment. (Nasdaq: MUEL). http://www.paulmueller.com/

Paxson Communications Network television broadcasting company that owns and operates 63 broadcast television stations. (AMEX: PAX) http://www.paxson.com/

The Pepsi Bottling Group, Inc. Manufacture and distribute of Pepsi-Cola drinks. Includes product data, company news, careers, financial information, and FAQs. (NYSE: PBG) http://www.pbg.com/

Hummingbird Ltd. Developes and sells PC-X connectivity software. (Nasdaq: HUMC) http://www.pcdocs.com/

Pegasystems Inc. Develops software which automates customer interactions across transaction-intensive enterprises including account set-up, record retrieval, correspondence, disputes, investigations and adjustments. (Nasdaq: PEGA). http://www.pegasystems.com/

Peerless Systems Corporation Provides software-based imaging systems for digital document products including printers, copiers, fax machines and other products. (Nasdaq: PRLS). http://WWW.PEERLESS.COM/

Penn Engineering & Manufacturing Corp. Developes, manufactures, and sells self-clinching and broaching fasteners, inserts for plastics, as well as automatic insertion equipment for such fasteners. (NYSE: PNN) http://www.pemnet.com/

Penn National Gaming, Inc. Owns and operates thoroughbred racetrack and off-track wagering facilities which simulcasts races, in Pennsylvania. (Nasdaq: PENN). http://www.pnrc.com/

Perclose, Inc. http://www.perclose.com/

PSINet Inc. Provides internet access, services and products, including dedicated and dial-up internet connectivity, corporate intranets, web hosting and collocation, remote user access, multi-currency electronic commerce and security services, to clients in the United States as well as in international markets. (Nasdaq: PSIX). http://www.psi.net/

PerkinElmer, Inc. Designs, manufactures, markets and services products and systems within three units: Life and Analytical Sciences, Optoelectronics and Fluid Sciences. (NYSE:PKI). http://www.perkin-elmer.com/

Pfizer, Inc. Discovers, develops, manufactures, and markets prescription medicines for humans and animals, and makes many consumer health care products. (NYSE:PFE). http://www.pfizer.com/

PhotoMedex Designs, develops and manufactures light-based technologies for healthcare applications. (Nasdaq: PHMD). http://www.photomedex.com/

Physician Computer Network, Inc. http://www.pcn.com/