Aside from Germany, there is also a general election in Portugal today. Portugal, a semi-presidential democracy, is electing is parliament, via closed-list PR (with widely varying district magnitudes).
In addition, there are primary elections in some Colombian parties.. Colombia is one of a small number of countries with state-administered primaries (which are optional for parties). The Liberals and the Alternative Democratic Pole are holding presidential primaries. For the first time in Colombian history, there are also some congressional primaries, including in the Conservative Party. The Conservatives
canceled postponed their planned presidential primary when the proposed constitutional amendment to allow President Alvaro Uribe to run for a third term passed congress.* (This information is from Steven Taylor; see his post for further details.)
* In a correction, Steven Taylor notes that the Conservatives still have a presidential primary scheduled in March “just in case” Uribe is not running for a third term. (Up to today, all presidential primaries in Colombia had been held in March, on the same day as congressional elections. So the parties holding primaries today are part of what seems to be almost an iron law of primaries everywhere: they get earlier and earlier…