For QOTW #20, scheduled for publishing to the Security Stack Exchange Blog on 2 Mar, please post as Answers, and vote for your favorite question from the whole Security Stackexchange site.
Please post any question that you feel is of worth and the reason why. Try not to promote your own questions or answers for publicity's sake. We are looking for questions that are of great interest, or have exceptional answers. If you like a posted question then vote it up. Each week we are going to try to post about the question and its contents.
When submitting a QotW, please indicate if you would be interested in writing about it for the blog. This is a factor which we take into consideration when selecting what to blog about - we need a post we can actually say something interesting about, it shouldn't be something we've written about too much before, and it helps to have somebody interested in writing the article.
Note to the answerers, if you dig a question, you can always submit a draft blog post about it, even if its not picked as QotW. Contact a moderator, or come and chat in the DMZ if you need more information.
timings: selection of topic ASAP, selection of author by midday Thursday at latest, draft for review by end of Thursday and publish midday Friday.