Type DNA - new font manager (I think one of the best on the market)

Unique tools

Similar Fontsâ„¢ - streamlines your search
Font Harmony - find complementary fonts (body, headline, contrast, family)
Attribute Filters - shape is everything (weight, width, italic angle, optical size)
SmartChoice - creative inspiration
Card View - even has a lazy mode
Webfonts - Direct access to free Google web fonts

Manage fonts

Search, Browse, and filter
Pre- or user-generated sample text
Font comparison
List View and Card View
Searchable user-added font notes
Font family sub-sorting
Browse history
Seamless integration of newly purchased fonts
Activate, Deactivate and Hide fonts
Automatic serif / san-serif detection
One-step font import
Quick/Smart grouping based on font criteria
Filter fonts by Unicode Ranges
Unlimited Groups
Drag drop organization
Activate fonts direct within CS5 / 5.5
Cross platform compatibility (Mac & Windows)
Duplicate and conflict font alert

Standalone & Integrated inside Adobe CS5 / 5.5

TypeDNA works Standalone (as a font manager)
Inside CS5 / 5.5 (as a plugin: Photoshop, InDesign, Illustrator)
Alongside any existing font manager

official website: