If you really look around you'll quickly learned that everything is taxed. Everything. Politicians have gotten very good at finding all sorts of areas where they can insert a probe and extract "blood". From gasoline to telephones, communications, dogs, cars, food, air travel, tobacco, etc. Here's one attempt at a list: http://theeconomiccollapseblog.com/archives/taxed-enough-alr...
Here in California it is not uncommon to hear of more hair-brained schemes to levy taxes on more things. A little-bit here and a little-bit there and politicians have collect billions to keep their gravy train going.
Regardless of whether we are talking about personal or corporate taxes, or taxes in general, it is important to always keep in mind what the "mission statement" might be for taxes. Lately the lines on this have blurred.
In general terms taxes should be used to run the government, military and reasonable social services (the last one being debatable).
Lately, at least in California and other similarly-afflicted states, a huge percentage of taxes are being dedicated to supporting a ridiculous pension infrastructure and a bloated government and public employee sector. Tax increases are being proposed with the sole purpose of finding funding for union pensions. We, then, exist to ensure that the union "class" gets to live happily every-after with their wonderful lifetime pensions and healthcare. This is beyond wrong. This is criminal.
I don't have a problem with the idea of questioning if large companies are paying what they are legally supposed to. At the same time, the system should also demand that government be responsible and not exist to create and maintain their own ecosystem through the abuse of taxation. Name one government entity that, over the last few years, has put forth cuts and savings measures on par with families and businesses across this nation. Exactly.
Watch closely what is happening with the post office. Here's a clear case of a government entity that should start to see massive cuts and reorganization. What do you want to bet that we carry these people on our taxes for the rest of our lives? So, rather than being able to devote our money to the furthering of our own kids and culture we are obligated, through taxation, to support useless hordes of government employees. This isn't going to end well.