How and why do I keep getting all these %$*&% insistent MacKeeper ads, some "in my face" with normal 'net web browsing and now even more at even ehmac.ca, but at least a bit more subdued.

How and why am I getting hit so often?? Did I do something or have something installed somewhere that keeps attracting all the MacKeeper ads??

And my gosh, what are they spending on advertising???

Surfing the internet in paradise: AdBlock For Safari (http://safariadblock.com/).

Another one glimmer blocker
GlimmerBlocker (http://glimmerblocker.org/)

Or buy a router with ad blocking built in which covers your idevices and others on your network