The Open Source Initiative (OSI), one of the principal advocacy organisations on open source software, has unanimously approved the European Union Public Licence (EUPL) version 1.1 as an open source licence, on 4 March.

Ingres Corporation, the leading open source database management company and pioneer of the New Economics of IT, announced today the availability of Ingres Database 10, the latest version of the company's flagship open source database product.

Monty Widenius, founder of MySQL, has said in a blog posting – "Thoughts on Dual-Licensing Open Source Software" – that he recently became aware that Sun Microsystem's OEM licence agreement for MySQL would restrict users who had signed up for the commercial licence to the open source database from modifying MySQL or using any forks of MySQL.

For Sun Microsystems, the acquisition of open-source database vendor MySQL is a positive step, giving Sun its own database and a growing, loyal community of open-source users and developers to add to its portfolio. So what's the upside or downside for the MySQL community itself?

The International Free and Open Source Software Law Review (IFOSS L. Rev.) is a collaborative legal publication aiming to increase knowledge and understanding among lawyers about Free and Open Source Software issues. Topics covered include copyright, licence implementation, licence interpretation, software patents, open standards, case law and statutory changes.

Business users of open source software should review their Open Source licensing agreements, audit their use of Open Source and create formal policies for managing source code, especially mixed-source code.

Many open source licences are only two or three paragraphs long and read more like a manifesto than a traditional software licence.

A new licence for the web video codec makes it "fully open source" says OSI board member Simon Phipps

Black Duck has analysed its database of 200,000 open source programs to see which programming languages are most popular. The database is used by the company as part of their compliance and license management services.