It’s widely considered a valuable marketing element for your business, but only so long as you use it correctly.

The Search Engine Guide Blog has a list of 10 tips for creating a stand-out small business blog, including the “timely” tip:

6 - Create a posting schedule.  Shoot for getting up a minimum of 2 new posts every week.  3-4 is better, but you need at least a couple of new posts every week.  And try to post them on different days, don’t post two new posts on Monday, then fail to post another new post until Friday.  Spread your posts out, and when in doubt, post them in the middle of the week, on Tuesday, Wednesday, and Thursday.  This is when blog traffic is usually the highest.

Source: Search Engine Guide Blog