If you're a beginner to Scottish Genealogy (or looking for some suggestions on how to expand your research) I think one of the best things you can do is read a book. Here are some titles from my bookshelf. What books have you found helpful?
'Scottish Genealogy' - Bruce Durie, The History Press, 2009
'Tracing Your Scottish Ancestors - The Official Guide' - National Archives of Scotland, Birlinn, 2009
'Rooted in Scotland' - Cameron Taylor, Luath Press, 2007
'Gathering the Clans' - Alan Stewart, Phillimore, 2004
'Tracing Your Scottish Ancestry' - Kathleen B. Cory, Polygon, 2004
'Scottish Family History' - David Moody, Batsford, 1988
'In Search of Scottish Ancestry' - Gerald Hamilton-Edwards, Phillimore, 1986