WordPress has become a great tool for internet marketing. It is no longer a tool for blogging. You can use it for blogging if you want, because google loves wordpress sites because of the flexibility of the platform were you can update content just like mailing a friend or close family member.
But now you can leverage the fact that google loves wordpress sites and get the wordpress site be your sales engine. It can be used as a list building software with some plugins and themes the community has to your disposal. I have wordpress on all my content and sales sites because you can rapidly leverage the power of point and click customization of you landing pages, sales letters, video salesletters and membership sites.
WordPress is the true list building software and you can read more about this information on this blog of mine.