You can create a blog post or articles and then post directly to High PR Web 2.0 Sites List. Some websites redistribute your content across RSS feeds and others simply create a directory style listing that is searchable.
Search engines always follow the distribution of posted content and index it for display. Your content will remain active in search engines or will change as you make changes. Building backlinks from high pr web 2.0 slowly and steadily helps your page rank to increase.