The other day I was on a client status call with a client who mentioned he had two blogs, one with us, for his business, and another that he occasionally used for social networking and so on. After handing me his personal blogs' URL to check out, I noticed some of the content was the same for both blogs. YIKES!
Why is this so bad you ask. Well, ultimately, Google will end up getting confused about the generated content on both sites and will decide to blacklist one of the blogs. Your also running the risk of losing some great traffic based on not generating fresh content. If readers have both URLs and are avid readers of both blogs, they will tend to get a little bored by seeing the same posts.
All is not lost though. If you are creating blog posts that share similar topics, be sure to keep them simple and reword your posts, linking back to the original post. As long as you don't copy and paste the same post, you have nothing to worry about. It's never a bad idea to reference your old work, just don't duplicate it.
