Wordpress is blogging system where you can make your own blog. Btw here are some list and the best place where you can submit or choose your favourite wordpress themes after you finish installation with your own wordpress blog.

www.bloggeraz.com
bloggeries.com/forum
themes.mygreencorner.com
themesbase.com
www.themetube.com
forums.digitalpoint.com
www.wpthemesfree.com
www.wpskins.org
themes.blogflux.com
ithemes.org
themes-wp.com
themebot.com
freewordpressthemes.com
namepros.com
board.themevibes.com/wordpress-themes
bloggingthemes.com
forums.ukwebmasterworld.com
web2feel.com
wpsnap.com
unmatchedthemes.com
templatesforums.com
blogflux.com
wpskins.org
web2feel.com
namepros.com
themes.rock-kitty.net
wpthemesfree.com
themeboss.com
forums.ukwebmasterworld.com
www.osskins.com
www.wpsnap.com
templatenavigator.com
johntp.com
themespack.com
wordpress.mu
webdevforums.com
bloggingthemes.com
webdesignerforum.co.uk
wptheme.net
themesbase.com
wordpresswow.com
graphic-design-forum.com
freelayouts.com
forum.easywordpress.com
csschat.com/index.php
v7n.com
fresheezy.com
themes-wp.com
freewordpressthemes.com
forums.digitalpoint.com
designerstalk.com
talkthemes.com