Open Source on Display put together a great synopsis of the best 40 open source products they see being leveraged in the IT market today.

But what impresses me is the level of penetration that open source has made across the entire IT spectrum in database, middleware, applications and others. Everything from desktop management and OSS systems to vendors that offer networking, BI and business process management solutions are included as part of this list.

I think it’s not only a validation of open source software in general, but also underlines the success that vendors are finding leveraging open source as a business model as well.