Useful OSS For Corporate Use

Bayonne - GPL telephony software
http://bayonne.sourceforge.net/resources.html Interesting project. Looks like it will provide telephony, i.e. voice interfaces... could be useful some day.
Report manager a reporting application (Report Manager Designer) and ... the screenshots and the demo look nice. It's all web based, looks like it's trying to be a Crystal Enterprise alternative. Only time will tell...
http://reportman.sourceforge.net/
This reporting tool looks like it has momentum, it's related to the Eclipse collection of open source tools:
http://www.eclipse.org/birt/
A slashdot thread on OSS reporting:
http://ask.slashdot.org/article.pl?sid=06/03/08/2259203
The Slashdot thread above has a lot of positives about JasperReports - JasperForge.org and JasperAssistant.com. Almost critical mass.
http://www.scribus.org.uk/ - Desktop publishing, GPL, Linux
SurgarCRM is an open source CRM application
ERP + Point of Sale (POS): http://www.openbravo.com/
ERP forked from an early Odoo - tryton.org
Web Crawler (for building a search feature into your website) - http://www.sphider.eu/download.php