What about from a non-technological perspective? What are some important steps an SMB can take from a management perspective to prepare for e-discovery?
The most important thing is to have IT and legal work together. It's remarkable how frequently this simply doesn't happen. However, it doesn't, usually because there are different reporting structures, different budgets, etc. So the most important step is for the IT and legal stakeholders to start working together if they haven't already. Then, identify the systems and repositories throughout the organization and prioritize those that represent the biggest legal risk to the organization.
Many SMBs will find that messages will be a significant legal challenge and message archiving can offer some significant operational benefits, such as improved data backup and recovery and storage utilization.
Lastly, it's important to have a good game plan for what happens in the event of litigation. So, not only are you getting rid of the information you don't need to keep for legal or business purposes, but when litigation does hit you have a good workflow in place to appropriately respond.