You have control over your web presence, you can publish articles and speak directly to your visitors. The more you publish, the more content is indexed in search engines, the more searches you appear for. I recommend a blog for each web site that you can update quickly and easily.
Our websites are search engine friendly out of the box, because we write using HTML5 CSS3 valid code, and we build in the correct url structures, headings, image alt tags etc, that all count towards your Google ranking.
Security is so important. We now recommend all new website owners to purchase an SSL cert on launch for a https secure website.
For monthly social media management, newsletters, mobile versions of your web site and other great services just check out the other links above!