BacklinkWatch has been shutdown? Really…!!!

Hi there, For competitor's backlink research, I always used which is best from other backlink extractor websites. But, I m watching for 3 days the website has been shut down and I m totally upset. Is backlinkwatch is really shut down for forever? What do you think?
Also, suggest me any free backlink checker tool which I can use for extracting backlinks from competitor's website. Thanks a lot.