Your website: the truck which must support everything else you have online.
Email: an outbound marketing channel without equal; always be inviting visitors to your website to opt into your comms loop, and then invite them back to the site from within the newsletter. Social media: your community… eventually they’ll end up back at the website (hopefully). Search engine optimisation: a website without wide and varied market-aligned content is like a guitar without strings… you won’t be able to play the informational tunes your target audiences are hungry for. Analytics: track website conversions and value via your most valuable referral sources: email, social and organic search.
Respect the trunk.