So you've found an article you think other Edgecase readers will be interested in. Once you've filled out this form, it'll show up on the main page with your name on it. The article's URL is important - without it there's nothing to post.
Good summaries are typically two or three sentences long and paraphrase the article.
If you're not feeling inspired, try copying the article's first paragraph. Feel free to include URLs. Don't use HTML tags, though, as they will be ignored and printed out as plain text. Here's why registering is cool.