/postroll
evertpot.com
evertpot.com
#{some tag} or tag:{some tag} to filter by tag; using this more than once will find results that match all tags.year:{year} to filter by year. If you use this multiple times, the last one wins.begin:{year-month-day} to restrict to results beginning on that day. Last one wins.end:{year-month-day} to restrict to results ending on that day. Last one wins.
Evert has a nice write-up demonstrating the different headers and content you can return for an OPTIONS request, and how doing so can improve API discovery and usability.