8) Software development : Plugins for WP or Joomla; CSS templates, Modules or Website Elements >> very useful for increasing authority and incoming links (inserted directly into the software source code).Guest posting (or blogging) is certainly one of the most widespread and effective techniques for promoting, giving visibility and bringing immediate traffic to your site or blog , as well as of course building important active partnerships with other bloggers. At the base of everything there is a very effective technique, which we can call Marketing Outreach , and which consists of establishing relationships with people and bloggers who have the same audience as you, that is, a public similar in interests, needs, motivations, and who operate in the same sector. However, the element that enriches this technique with value is the notoriety and enormous following that the "influencers" have and their natural ability to transfer visibility , trust and positive SEO Rank when they decide to publish a " guest post " on their site or blog.