Try to make your site as much interactive as it possible. Visitors will update the information on the site 24/7 and you shouldn't take care about news on your site. Futhermore you can understand what your visitors are looking for, and which information is most interesting for them.

Register your site in Link Catalogs before you will add it to Google. Google will check how many sites in internet link on your site, and define your rating on the base of this information. So try to visit as much catalogs as it possible.