I'm mainly a content curator. I find things of interest and share them. Occasionally I'll post a link back to one of my sites, but not often enough to seem spammy.
I start by bookmarking webpages that I think my readers would find interesting and informative. I used to use delicious.com, but I'm afraid they're dead or dying now.
So now I keep my bookmarks in a blogger blog. The problem is there aren't separate fields for a link and text. So I set the link as a header element: <h4>.
I then wrote a custom program to take apart the blogger RSS feed and do several things: clean up the nasty google-specific namespaces so that the resulting feed will pass feedvalidator, and look for those <h4> tags I put in the blog post, and drop the content of that header into the <link> element of the new RSS feed.
That new feed also goes into my Buffer account. Once every day or two I log in there and queue the posts to go to my business Facebook page, my LinkedIn company page, my business Google+ page, and optionally a couple of personal pages.
Next, I take the feed from the bookmarks I've tagged opensource and display them in to the lefe sidebar on my website OSSAtlanta.org that keeps up with the Open Source community around Atlanta.
I teach a class at Emory Continuing Education on email marketing. I encourage my students to sign up for a mailing list of my email marketing resources. So I take a feed from my bookmarks that I've tagged emailmarketing and use that to drive a Mailchimp RSS-to-email campaign.