The most popular post on MSJ by far is the series I did on Hassan al-Banna's On Jihad. Few days go by where I don't see a bread crumb from a social bookmarking site, a wikipedia page, or a google hit.
Might I suggest my other al-Banna work: Toward the Light. I know everyone is interested in "jihad," but for al-Banna, jihad had a reason. That reason was -- and continues to be -- the creation of an Islamic state. Toward the Light is al-Banna's treatise on good Islamic governance. It describes the end-game of their jihad, and worth reading if only to understand the reason why they fought then and why they're fighting now.