There are many different independent websites that offer musicians printable guitar chord charts from an extensive database of songs. Sites such as Chordie allow users to search by artist, song and genre and create a personal song book that can be shared with others.
These services require that the user register and create an account to save and share lists. Chordie also has a large forum for its users, editors and songwriters as well as sections covering specific styles and types of instruments. Other sites, such as guitarchords247, provides tutorials, resources, reviews and recommendations for online guitar courses, detailing their strengths and pricing.