Site search in particular, although user and wikidot-wide search capabilities would certainly be quite powerful as well (all are available as modules on the web version of Wikidot)
Input: Search terms as a string, Number of results to show
Output: Results in order of relevance (or if not in order… return the relevance % or something like that so we can order the results ourselves)
~ Shane (Wikidot Community Admin - Volunteer)
Wikidot: Wikidot Editor, Official Docs
Other: YouTube (gaming, primarily Minecraft)