What’s the best way to do outreach to investors?

Reid Hoffman (Partner & Co-Founder at Greylock Partners)
LinkedIn’s Series B Pitch to Greylock: Pitch Advice for Entrepreneurs

Understand your audience. Research prospective investors thoroughly. What kinds of businesses are they looking at? What model/criteria/triggers do they use to judge whether a project will be successful or not? If you don’t have some sense of their points of view, your likelihood of making the pitch go well is more random