5. Follow accounts that everyone in your industry follows

Twitter's suggestions are in part based on whom you follow and who they in turn follow. If you want your suggestions to work better, you need to follow some of the big-name accounts in your industry (for me, it's Google, seland, SEOmoz, Matt Cutts, etc.).

Though getting follows from those accounts can be difficult, they can be good sources of content and they make your social graph look more legitimate. Just make sure you do not overdo it by following too many who won't follow you back.