Original wordpress theme "Green People" will be perfect for the business blog. Dark green background of the theme balanced with the green colored header and light body with the left sidebar. The theme has widgets ready and 2 columns. It has rounded corners as well as all inside blocks and buttons.
Demo theme "Green People" | Download
WordPress theme "Single Mouse" was developed in a light color scheme with blue tint. Current theme has 2 columns and one of them is easy for reading left sidebar. Features are "Single Mouse": widgets ready, round corners and high quality. Current theme intended for small business Company visiting site, for personal blog using, etc. This theme gives for free for using how it is.
Demo theme "Single Mouse" | Download theme
Free business wordpress theme "Norwegian wood" differs from other themes rather profitably as for simplicity and reliability. The main features of this theme are light-colored schema and slightly rounded corners. The current theme is widgets ready. If your blog supports nature, this theme is for you.
Demo theme "Norwegian wood"| Download theme