There’ll be times when you’ll be struggling to find something to write on your blog. At those times you should remember that the fact that you’re adding content is almost as important as what you’re adding. Adding content shows that you’re dedicated to your site and that you have something to add.
But doesn’t quality count? Yes it does, but when you’re trying to fill your site with information everything doesn’t have to be ground breaking. If it adds value for your visitors you can add it to your site, and if your after long tail searches you might be well served just by adding lots of content that someone might find interesting or useful. Don’t add just anything though, make sure it actually adds value to the site.
If it’s original, on topic and well written, you’re good to go.