Thesis

The Thesis Theme for WordPress is a premium template system designed to serve as the rock-solid foundation beneath any kind of website.

Genesis Theme

This is a WordPress 3.0-ready theme and is SEO-focused. It’s incredibly extensible with the use of hooks and child themes. Also, widgets can go in various places besides just the sidebar. This theme also integrates with BuddyPress, which is great if you or your clients need an open-source social networking solution your WordPress site.

Caffeinated

Designed by Ryan Downie for WooThemes.

Elemental

A commercial theme by ProThemeDesign that is as useful as a framework as it is normal. It comes packed with options for customizable layouts, typography, navigation, widgets, page templates and more, all giving it the power to make any type of WordPress site.

WP Weaver

Twenty Ten Weaver allows you to tweak almost everything. You can change colors, fonts, sidebar columns, header size, and more. This theme also includes several new theme looks for an easy start. Just for example, this site is running on WordPress 3 and uses the “WP Weaver” sub-theme as its own theme.

Color Garden

Color Garden is a free theme released on Museum Themes under the GPLv3. This theme is jam-packed with features, from WordPress 3.0 functionality to Twitter integration. Color Garden uses WP3.0′s custom header option, and comes with 4 unique headers that accent the 4 color palette options available on the theme options page. We’ve also built in custom menus, custom backgrounds, and post thumbnails, hitting all the bases for cutting-edge WordPress functionality. If you use Twitter, we’ve got you covered there, too, integrating Twitter’s new Tweet button into our existing social sharing block on single post pages and providing options to display your latest tweets in the sidebar or the footer. The footer and sidebar are completely widgetized, and the footer has three distinct columns to add widgets. If that wasn’t enough, we’ve embedded a custom typeface in the header using CSS font-face. Each color palette has its own unique stylesheet, so you can easily use this theme as a framework or build child themes (or skins) for it.

Siara

Clean type drive layout – support for Google Analytics, Custom Fonts and twitter feeds.

Coda

Coda by WooThemes

Clean Slate

A minimalist yet stylish theme for any type of site. Thoughtful design matched with flexible theme options makes this a perfectly balanced theme for any project.

Continent

Unique layout Theme call Continent WordPress Theme.