I work in seo too for my day job. I am the only one who does off site building, social bookmarking etc. My co-worker only does keyword reports but she does some seo/auto blog stuff on her own time too to make extra $. She was asking me if I used a tool to social bookmark and I said no. I told her I bookmark manually and I choose the ones that show up in backlinks and are do follow. She asked me which ones I favor and I told her three or four and she wrote them down!! If she asked me only for the scope of work then that's fine. I just don't want to help her out with her own stuff. I am afraid she might use these social bookmarking sites for her own sites! If it's for something work related for the company then I don't mind. Should I ask her why she wrote them down? It was only three or four social bookmarking sites but they were ones she didn't know of before. I guess I'm stingy. I don't want my knowledge to benefit her or help her out in any way whatsoever. I only work for the company; my knowledge should not be for her use or profit! Should I confront her and ask her what she plans to do with it and why she was writing it down or will it just create trouble? It's been bothering me for days. Am I just being stingy?