Nice screen capturing tool for Linux

When I started to test applications in Linux environments, I started to miss Snagit a lot because it is not supported in Linux. Reporting bugs with specific and indicated images became nightmare. After a long long search then I found Shutter, A screen capturing tool. I find it very useful, this is a ongoing project many features will be added after final release but for now it is also very much workable. So, people who is  searching something like Snagit for Linux environment, here it is, have fun :)