I've done SEO for a company for approximately 3 years, they are very happy w/ the results & design of the websites. They want me to sign a non-disclosure agreement which I signed when initially getting hired, but transferred to a larger entity since then (multiple companies). Should I sign this? I know non-competes are routinely signed. The wording is very all around "you can't do anything with our information, plans, have an opinion, etc."