check out this link http://pravalikadesigns.com/free-directories-list.html You can find lots of directory submission sites here.
I pay a guy on fiverr for all my directory submission. You can get your site submitted to 3000 directory's in a day for $5. My post count is not high enough so I can't post a link, but just do a search on fiverr for directory's.
I am assuming that your website is in rank till , since you are doing work from one year. Then feed website with article or commenting back link. Because i personally feel that directory backlink does not support that much when compared with commenting and article until your website is listed in top directories like Dmoz,YDOP or high PR directories.
At directorycritic.com u can get many new directory site . Apart from that you can also search in few SEO forums.