I am looking for ideas on documentation platforms focused specifically for information security and response teams. Is there anything that has worked well? What are some of the unique advantages of one platform over another (e.g. wiki vs. CMS vs. network share)? This platform will also need to have the ability to easily search through the content to find things based upon keyword as well. What has worked or not worked for you in the past? Lastly, the ability to categorize the information in some manner would likely be helpful.
Note that this will be an internally hosted site that will not be accessible from the internet. This will also be limited to the information security team and staff.
We already have a ticketing system that is used throughout all of the IT department and would like to have a separate system used for documenting processes, procedures, policies items, possibly incidents, product evals, etc. that is exclusive to the IS team.