The Sugar Community Edition offers basic sales, marketing and support features, along with dashboards. The Professional and Enterprise editions add functionality for an annual subscription. Operating System: OS Independent
The worlds most popular open source database, Oracle-owned MySQL offers a reliable, secure RDBMS. Its list of thousands of enterprise customers includes Yahoo!, LinkedIn, Alcatel-Lucent, Google, TweetMeme, Nokia, YouTube, Craigslist, Sears and Zappos.com. Operating System: Windows, Linux, Unix, OS X
At 20 years old, Firebird offers a mature, stable code base. And despite its lightweight installer, it's been proven to handle databases as large as 1 terabyte. It's currently available in four versions--SuperServer, Classic, SuperClassic and Embeddedall of which are available free of charge. Operating System: Windows, Linux, Unix, OS X, Solaris.
Kexi boldly proclaims itself a long-awaited competitor for programs like MS Access or Filemaker. And unlike the commercial alternatives it supports native, dedicated, database connections for MySQL and PostgreSQL. Operating System: Windows, Linux, OS X
Most good desktop publishing programs cost a lotbut not Scribus. This app gives you professional-quality page layout features, including CMYK color separations, spot colors, ICC color management, and PDF creation. The interface is easy to use, and you can find a lot of help on the Web site. Operating System: Windows, Linux, OS X
Like Exchange, Zimbra offers shared e-mail and calendaring capabilities, plus it adds document storage and editing, instant messaging, and simplified administrative controls, all accessible via a Web-based interface. Note that while Zimbra runs on a Linux or Mac server, users can access it from any browser or even from the Microsoft Outlook client. It's also available in hosted versions. Operating System: Linux, Unix, OS X
OpenERP's claim to fame is a modular design that lets you select only the functionality you need. It's available in commercially supported and SaaS versions as well as the free community edition. And if you'd like to see how open-source ERP compares to commercial products (including ones we haven't listed here), OpenERP offers links to a couple of charts. Operating System: Windows, Linux
The self-proclaimed "leading web-based open source ERP," Openbravo can be deployed on-site or in the cloud. It's available in both a free community version or in a supported professional version that can be purchased from third-party Openbravo partners. Operating System: OS Independent
Compared to the other ERP options, Adempiere is much more community-oriented. It also includes some POS and CRM functionality, and integrates well with a number of other business-focused open source applications. Operating System: Windows, Linux, OS X, others
Instead of purchasing a hardware appliance, you can use Endian to turn any old PC into a Gateway Security Appliance for your network. Features include a firewall, antivirus, spam-filtering, content filtering of Web traffic and a VPN solution. Operating System: Linux
Like Endian, Untangle lets you use an older PC as a gateway security appliance, but it also comes in a software version for protecting a single PC. The free version includes spam and spyware blocking, anti-virus, intrusion prevention, firewall, reporting, phishing prevention and more. Additional features and support are available with a paid subscription. Operating System: Windows, Linux
One of the ways around the issues of security and control that make some businesses wary of cloud computing is to build a private cloud -- one that remains within the corporate firewall and is wholly controlled internally. Private clouds also increase the agility of IT an organization's IT infrastructure and make it easier to roll out new technology projects. Download this eBook to get the facts behind the private cloud and learn how your organization can get started.