Conflict of interest: In order to avoid any conflict of interest with my day job, I don't generally review books for which I have written the index. (bookwyrmshoard.com)
I also need to shout out to the wonderful reader who reviewed my book on two sites, and then put it on her blog! (lisamanifold.com)
It feels too much like there's an inherent conflict of interest, especially in reviewing books in the genre I also write. (writerunboxed.com)