PennWell publishes more than 55 business-to-business magazines, newsletters and technical journals, in addition to some 50 on-line, industry-specific Web sites. PennWell also conducts more than 45 industry conferences and exhibitions annually throughout the world and provides an extensive offering of books, maps, encyclopedias, directories, software, research and database services. Founded in 1910, PennWell is headquartered in Tulsa, Okla., and has major offices in Texas, New Hampshire, New Jersey, Washington, California, Colorado and Illinois with international offices in Singapore, Canada, Dubai, Germany, Hong Kong and the United Kingdom. Additional information concerning PennWell can be found at www.pennwell.com.