Blog posting can be a challenge. Although not difficult, posting an entry deserves attention so it gets noticed and read.
Posts should be carefully thought out so it develops and builds your brand. Promotion is important, but don't overdo it. If you do come back with informative posts in which you put selling on hold. Do your research. This pays off. Perhaps not immediately, but for long-term growth research is very valuable.
Content is king. Remember that. Keep your content focused on what you do. Don't get too far off your path to success. Develop and care for the interest you've created. That a content goal of yours.