Well, December brings a few more meetings of C++ User Groups this year:

C++ User Group Meetings in December

From the article:

This December feels a bit special, as my own user group was founded 2 years ago. We'll celebrate with cake and a C++ quiz! Also, a few other C++ User Groups do meet:

    11.12 C++ User Group San Francisco/Bay Area
    12.12 C++ User Group San Antonio -- 2 talks
    12.12 C++ User Group London
    12.12 C++ User Group Dresden -- virtual inheritance & CRTP
    17.12 C++ User Group Berlin -- the C++11 Memory Model
    18.12 C++ User Group Düsseldorf -- 2 years! We'll have cake and a C++ quiz!