Start with the link, not the sentence. Often, all you need is a nice clear link. No summary text. The link should be the first thing you think about. You should only add surrounding text if absolutely necessary.
wila_María Luisa SantosUn recordatorio de pautas básicas para escribir buenos enlaces, por Gerry McGovern http://t.co/Ik6YCBAo (especial para alumnos de #enl12 )