Download three column wordpress themes and use them. They are best for professional blogging. Three column wordpress themes gives you ample space to do whatever you want. More sidebars gives you the scope to add more navigation links or ads into them. And this thing is very user friendly. If you are planning to start a commercial blog, then go for three column wordpress templates. They would help you in managing and presenting your contents.
05 Moon 1.0 – Not all themes have to be light colors to be pleasing so long as they are well organized. This is an excellent black theme, variable width and widget-ready.
Acid Green Pro – Fixed width, centered layout with widget ready sidebars. Tons of space in the sidebars for lots of goodies.
Alike Theme – Another darkish theme, but quite easy on the eyes, AdSense ready, fixed width and widget ready.
Ayumi – Mainly white with good highlights, easy to read and widget ready.
Bionic Jive – Compartmentalized well, clean read, variable width.
Blogging Simply – Fluid width, widget ready, loads of space in the sidebars for all the extras you want.
CitrusIsland – Variable width, widget ready, colors that pop.
Cordoba Green Park – Variable width, widget ready, easily changeable colour schemes.
Creaker – Widget ready, understated and easy to ready, perfect for customizing.
Crunch – Available in multiple colors, easy to change header.
Daily Digest 3.0 – Fixed width, widget ready, newspaper style.
Link Removed – Very elegant looking, great for a foodie blog, variable width.
Fresh Apple – It’s based around a green apple, how can it not be soothing to the eye? Variable width and widget ready.
I Like Grey – Variable width with lots of boxes in each side column for customization.
i3Theme – For the Mac lovers in the crowd, now your WordPress blog can look like your favorite operating system.
Illacrimo – Widget ready, smooth appearance. Perfect for a graphic artist site.
Intensive – Google AdSense optimized, good for newish blogs.
Mandigo – A fixed width (800 or 1024) theme that can be two or three columns based on settings on the Options page. Widget ready.
Mogle – Black and orange professional looking theme, Adsense ready.
Navigation WP Theme – Based on the WordPress Admin area, variable width, widget ready.
Nuberu – You can’t much cleaner than plain black & white. Fixed width.
OmegaLeaf – Very sleek white and red theme, fixed width.
Pink Web 2.0 – Versatile theme with numerous uses, widget ready and fixed width.
ProSense – Fixed width, clean reading, and available in three different
color schemes. Widget ready.
Soccer Theme – Fixed width, widget ready, great for a sports-themed blog.
Talian 1.0 – Clean colors,
easy to read, variable width, widget ready for easy customizing.
– Variable width, great for a tech themed blog.
TyreMonkey – A nice red and black themed three column design. Fixed width.
Ubmodicus – Lightweight, fast loading, widget ready.
Unnamed – While it lacks a name, it has Ajax features (the black area you see is a pop-in) as well as being widget ready. Fixed width.
Zen – Very stylish,
easy to read, fixed width, widget ready.