Are you getting more spam comments than usual?

Since the beginning of December, I've noticed a definite increase in the number of spam comments I get here. Not so many as to cause a problem, but where I used to get 3 or 4 in any given month, I now seem to get 4 or 5 a week - I had 3 of them just this morning.

They range from links to websites offering cheap jewelry/shoes etc. to foriegn language comments (most of which I can't read) which have no links, to nonsense comments which make no sense whatsoever.

Anyone else noticed an uptick in the amount of spam comments they've been getting?