"Marketing automation" can mean a lot of different things, so first, let's all get on the same page. This post is great for beginners.
If you're considering automation, consider whether you're really ready for it. (Believe it or not, not everyone should invest in the technology quite yet.) This post will help you decide, and this RFP will help you with the purchasing process.
Once you're ready, here are some recipes that'll start you off on the right foot and workflows that'll make your life easier. Oh, and of course, be sure you don't accidentally screw it up ;-)