How increase page rank for the one-page site?

One week ago I've released new online-service (http://keyword-suggestion-tool.com).
Google Webmaster Tools show that site is indexed but I couldn't find my site in Google. When I make search for "site:keyword-suggestion-tool.com" then I see my site in result.
Can you suggest me how I can increase the page visibility in Google?
How increase page rank for the one-page site?

See original post by ANovokreschenov