Gliese 581 c is not the only planet discovered recently.
* XO-2b: is a fairly typical transiting planet discovered by the XO telescope. It orbits one of the components of a wide binary star.
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HAT-2-b orbits the star HD 147506. It is by far the most massive and eccentric transiting planet discovered so far.
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Corot-exo-1b is the first planet discovered by the COROT telescope. Even though it is more massive than Jupiter, it seems to be one the most inflated planet discovered so far (radius 1.5-1.8 times that of Jupiter).
There are also been many regular radial velocity planet discoveries recently. So far in 2007 there have been almost as many discoveries as in the last year together (24 vs. 27). During the recent years and against predictions the number of new planets have been fairly constant between 26 and 34. Apparently that is changing, especially as lower-mass planets are being found more and more...