Frontline--don't leave me now, baby

Having lived with dogs in Virginia and North Carolina before Frontline became widely available, I remember what it was like to have to worry about fleas--fleas in the grass, in the carpets--not just on the dogs. At times, it was so bad that you could watch them jump onto your ankles as you walked across the yard--or room, if you were so unfortunate as to have a house infested.
Frontline has literally wiped the concern for fleas off the slate for me and many other dog owners I haven't had a dog with fleas in nearly 10 years.

Ticks are a perpetual concern--but it's manageable, and when the dogs are treated during the summer, often the ticks I find are dead ones.

What if Frontline (or the other monthly applications) were to stop working? I've heard from some dogfriends that they think it's no longer as potent as it once was. Some of this ineffectiveness may be due to counterfeit or diluted products, but maybe something more is going on. This blog post talks about how it could be happening now.