This Week in MongoDB Aug 19-25` highlights the latest news, updates, and events from the MongoDB community. The week's top stories include MongoDB powering eHarmony's daily match processing, a new whitepaper on Amazon Elastic MapReduce best practices, and various upcoming events such as An Evening with MongoDB Minneapolis and Big Data Breakfast Seminars in Madrid and Paris. Additionally, there are webinars, online education courses, public training sessions, user groups, and events for developers, administrators, and DBAs. The week also features new course registrations, including M101JS and M102, which are now open for sign-up.