Probably best to keep the same colour scheme and make sure your name / logo is at the top but there's nothing wrong with changing things a bit. The Google blog

Probably best to keep the same colour scheme and make sure your name / logo is at the top but there's nothing wrong with changing things a bit. The Google blog is a pretty good example: http://googleblog.blogspot.co.uk/ http://googleblog.blogspot.co.uk/ You can immediately tell that it's a Google creation, even if the Google logo wasn't there, and the moving circles at the top make it a bit more fun.