Quite a bit! Shishank Mathur has posted a list of some product names in the Portals and Content Management space and his interpretation of what the name means.
Many of these products though have clearly evolved and the names do not reflect their current functionality. A quick peek in the history shows how Documentum has evolved from an EDMS to ECM – Here’s Documentum in 1999, 2002, and 2004.
And here’s Interwoven in 1996 when it created tools for concurrent website production, during dot com boom in 1999 and in 2004 when they launched a vertical specific solution. Interesting 🙂