This article describes how to configure the CMS, plugins, and other utility that will help the site owner regardless of the chosen strategy of promotion in the future get a tangible effect SEO.
The list will be updated whenever possible. Old services will disappear, new will be added, so stay tuned!
Want to know the answer? Here is a video, where Matt Cutts (former head of Google’s Webspam team) clarifies the difference between underscores and dashes.