If I’m going to share information that I’ve learned, I typically link directly from the source. For example, I like to share the articles from the IDEA fit feed on my business fb page. I’ll place my short commentary on why I liked the article or why I think it’s a good read for my clients, then I’ll past the link.
I’m not an expert on the law. But whenever I’ve written papers or articles (grad school or professionally), I’ve either paraphrased the main idea in my own words, added my own content, then included a correct citation to the source material. if I’m using a short piece exactly, I put it within quotations so it’s very clear that I’m not the author.