Maltego is an open source intelligence and forensics application. It will offer you timous mining and gathering of information as well as the representation of this information in a easy to understand format.
CaseFile is Paterva's answer to the offline intelligence problem. Combining Maltego's fantastic graph and link analysis this tool allows for analysts to examine links between manually added data to mind map your information
Maltego Servers are VMWare images that give you the power of Maltego within your organisation. It gives you the ability to integrate with your structured internal data and leverage internal processes as well as the ability to distribute these transforms across your enterprise.