The frequency of your blog entries will depend on you, the goals of your site, and the topic of your blog. However, to take advantage of the interactivity of blogs, and to keep your readers coming back, we recommend creating new entries as often as you can. Try for a couple of times a week! Keeping your content fresh will help show your readers that you're serious about your site.
Remember that you can post text or photos or both, and your entries don't have to be long. Even a quick update can help keep your readers interested!