Honestly, I usually don't give a damn about edits in manga; there have only been a couple of instances that have really bothered me. *coughtenjoutengecough* Use of suffixes, slang, even a few minor artwork edits fail to send me into a frothing frenzy. Marketing is a funny thing and business are out to make money. Sad, but true.
However, I do get curious, so trolling around the net I ran into this site that keeps people updated on various manga edits. It was really quite interesting. I actually laughed at a few of them (Ultimate Muscle). Go check it out.
For those interested the the debotchery that is TenTen, you can see the edits here. CMX has crapped all over this manga, which is a crying shame. You can see for yourself at FIGHT:CMX. They've done a good job keeping people updated. I'll be buying the Japanese tanks instead.
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More interesting manga links