It's not that hard to find other sites. Just use Google like everyone else. But, with the way things are going, the publishers will probably start going after those sites as well. I personally wouldn't, because from what I've heard starting next week all these sites are going to start removing all mangas until there's nothing left at the end of the month, possibly early August. So, in other words, it's kind of an exercise in futility.
When you think about it, it was inevitable. Doesn't matter if it happened today, 2 years ago, or 5 years from now, eventually the publishers were going to say "No more. Enough is enough." I just hope this leads to a better system of getting manga to people around the world. A faster system, instead of having to wait months. Hell, something like an iTunes-based system would work.