Think about it: are there any CNet properties you can't do without, that do things no other sources can? (Can you even name any CNet properties besides cnet.com and download.com? Without looking, I can't)
They need us a lot more than we need them. But they certainly don't seem to respect that, or us, if they want to sneak this software into the homes of our less-wary family members, friends, and coworkers. (And they do have to sneak it, because very few people would willingly seek out some of this stuff to further clutter their computers and potentially track their surfing habits, etc.)
Let them know you won't stand for it -- tweet them, tell them on Facebook or G+ and so on. And remind them that they're so poorly differentiated from other publishers right now that you might have a hard time being convinced to bother switching back, the longer they take to cut stuff like this out.