Do you want to list your blog site to Google news so you can syndicate your news material?. Do you know that Google News has mandated that the publishers should follow certain technical requirements to include their site or blog in Google News. One of the requirements is that the URL should contain at least three digit identifier at the end of every url.
To acheive this you can add post_id at the end of your wordpress permalinks structure. For example %category%postname%-%post_id% or %postname%-%post_id% will make URL as http://yourwebsite.com/wordpress-tips-tricks-312.