Calibri: Common font used in Office 2007 applications and documents.
Verdana: This font is often used on web pages and applications.
Arial: Another common web page font, and used in applications.
Trebuchet: Common application font and used in some web pages back in XP days. Some older applications may still require it.
Tahoma: Common Windows font that you may want to hold on to for application and web page compatibility.
Times New Roman: The default font for web pages and word processing applications such as Microsoft Word.
MS Sans Serif: Default font for Visual Studio applications that is now required for a lot of legacy and newer applications.
For more resources, look into graphic arts classes through online universities.Source of Information : Windows 7 Tweaks 2010