One Idea I have been thinking about... What about having the ability to select from a pre-defined list of areas of expertise when setting up your profile. Such as "Linux, PHP, CSS, etc." and when someone posts a question they could select from a list of the most appropriate areas which would match them with a list of "Experts" in the area of their question. Paying subscribers would have this option. Their post would automatically be sent to those experts who meet their criteria. see more Might help in getting more questions answered. On the other side, the Experts who answer on a regular basis could be provided some form of incentives such as higher ranking, higher membership level, etc. Just a thought.