BetterBizWorks builds custom databases for Sales and CRM. We also offer lower cost open source databases like VTiger CRM. Open Source mean that the code of this software is open instead of proprietary. Using open source databases has many advantages including periodic upgrades, your choice of many available that are able to upgrade and or customize your system, ease of use, forums and groups for free help and much more. I found a video that shows a demo of a standard VTiger database. these databases can be customized to your liking. Take a look at some of the features that are offered here.