So Sick of Spam

Seriously! Does anyone know how to stop this? I've got a company blog and luckily I have that set to moderate comments. If I didn't then you would see all the wonderful ads for enlargements of the male unit and then some! I don't know what happened or how they have found me. Everything was nice and peaceful until about 2 weeks ago and now I get it every single day. We have a post for 5 Minutes for Mom which is causing a stir in the spam world. If someone knows how to stop this all together let me know. I have reported each post as spam but they just keep coming! I am now on a quest.