Make it long enough to count. Sure, 100 words of fresh content is better than no new content at all. Still, search engines tend to give preference to longer blogs and articles. Try to shoot for at least 300 words, but if you can get to 500 or more, go for it. There has been a lot of research that shows that search engines tend to favor "in-depth" content of at least 2,000 words
For more great articles like this in your inbox from James Gaubert and The Digital Diary please fill out your details on the contact us section of the site.