I would guess that most people know that the internet is an inter-connected system of hyperlinks, and many search engines rank the relevance of your site by how many other sites reference it.
Of course, that's one reason why Stack Exchange gives people badges for providing links to questions and answers (Announcer, Booster, Publicist).
I'm a software engineer by day, so of course, I have a website and blog where I talk about software topics. But, I also have a page on my site (linked to in the footer of all my pages) that discusses my company's position on environmental responsibility. Since finding sustainability.stackexchange.com, I've added links on my environment page to this site.
Stack Exchange makes it easy to add image links, for your profile (either just for Sustainable Living, or for all Stack Exchange sites). Check out the flair link off your user page. (e.g. mine is https://sustainability.stackexchange.com/users/486/nate/flair).
Also, I wrote a very simple webapp that queries the stack exchange servers, and compiles a list of my most popular (by vote) answers. So, I can embed in my own web pages a short list of links to sustainability answers, that automatically updates.
The webapp is written as a Tomcat servlet, so depending on your web hosting infrastructure, it may or may not be useful to you. But, if people express interest here, I might take some time to put the code online (cleaning it up, so it's not hard-coded to my user account, etc.).