From all the 50th anniversary blither, the most interesting thing that I have seen has been this video of Pope Paul VI making a statement (note the Royal "we"!) on the death President John Fitzgerald Kennedy. I found it at New Advent but there is a better transcript at This Week at Vatican II.
The 450th Anniversary of the end of the Council of Trent is next month, but I haven't found the "This Week at Trent" site yet. The content of "This Week at Constance" has not all been ratified by the Pope. (That's the best Conciliarist joke you are going to read all year).