The Chicago Tribune‘s network of hyperlocal news sites, Triblocal.com, has launched 13 more websites and will launch print editions for these sites later in the year, according to a posting on Online News Squared.

This development boosts the total number of Triblocal.com sites to 21 since its launch at the beginning of 2007.

A further 14 sites are planned by the end of 2008 according to Triblocal’s general manager Jane Jansen, the site reports.