Slow loading of my blog page

Both this blog and my other blog (see link in right bar) have been loading VERY slowly for the past three or four days; although I thought I knew what the problem was/is I've become less certain that I do, because of various other things I have noticed. I don't think it has anything to do with my blogs per se, because I have seen that a number of other blogs seem to be having their own problems, too, although not of precisely the same nature - perhaps it's something that is sweeping parts (at least) of the internet. I'm monitoring the situation and will do what I can (which may not be much) to improve it.