Issue: Suggest new wikis from search data.

Its often difficult to know what wiki articles need to get written. Our writers generally wait for suggestions, but that is a hit and miss.
It would be very useful if we would be able to get a list of suggestions. There are several queries that can be done to find missing wiki articles:
- top forum search phrases in the last X weeks / months.
- popular wiki searches
- popular tags used in the last X weeks / Months
- popular Google search entry queries.

It goes without saying that the forum search engine & Google are used most and will therefore give best results. tags and wiki searches are probably more correct in syntax / term, but used a lot less and therefore less reliable in amount of data to query. Maybe combine the various queries and check if wiki article exist for it.

It would be very useful to have a list of needed wiki articles for writers to check.