The company not only publishes a number of books but also hosts many annual conferences and provides online services for open source community. Among such conferences are O'Reilly Emerging Technology Conference (April 22-25, 2003) in California and O'Reilly Open Source Convention (July 7-11, 2003) in Portland, OR.
The "O'Reilly Network" publishes articles of interest to several distinct user communities - ONJava.com for Java developers, Perl.com for perl developers, MacDevCenter for Mac OS X developers and users, etc.
O'Reilly has adopted 1790 Copyright Durations, which limits the maximum term of copyright protection to 28 years; it is much shorter than the current default duration of the copyright monopoly in copyright law.
Well-known books published by O'Reilly include (in alphabetical order):
Their Safari Bookshelf makes the complete text of over 1,000 technical books available for online preview or subscription reading. It includes books from Adobe Press, Alpha Books, Cisco Press, Financial Times Prentice Hall, Microsoft Press, New Riders Publishing, O'Reilly, Peachpit Press, Prentice Hall, Prentice Hall PTR, Que and Sams Publishing.