Yes, I do. I think sometimes people just want someone to bounce ideas off. For me its primarily helping people to think logically about their problems, but there's also some help given from the years of experience I have. I'm not super-successful, but I've done 'ok' and I'm happy. The feedback from those I've helped has been positive and it feels good to help others. I think best way to get started is to just speak to people and see what problems they have and see if your knowledge can be helpful. Use your own network first - plus there's a fairly big network on here! :)