This method is about using Document Sharing Sites.
These sites usually have high trust in Google, and also get high rankings.
Just sign up for a free account and upload your articles to get started.
The only differene compared to ordinary article directories is that you write down your articles or product reviews on a word or open office document, and then upload it to their servers.
You can add a clickable link at the top of the article too, not just at the bottom.
Remeber to add the keywords you want to rank for in the title and description when you upload the document, the title and description gets indexed in the search engines.
The benefits are that it is free, and there is no review process.
My favourite document sharing sites are:
They allow you to add clickable links in your articles as well, don't just add too many.
Remember to not spam these websites with bad content, then they may get slapped by Google. Just add quality content or good quality product reviews.
Many times you can get 1 page rankings in Google if you choose long tail keywords in your title and description. You could also add backlinks to your uploaded documents from for example dofollow bookmarking websites, which could help increase the rankings too.
You could also search in Google for different long tail keywords that you are interested in, and see if any of the Document Sharing Sites above appears in the search results. Then you could try to compete with these keywords too.