- Arabic calligraphy from the Library of the Congress, USA
- Sakip Sabanci Collection on Google Art Project
- Sakip Sabanci on its own site
- Ozcay Calligraphy, Turkey
- Mohamed Zakariya, USA
- Rules of Arabic Calligraphy: one of the most popular manuals of Hashim Muhammad from Baghdad (d. 1973). Have your patience, reed pen and ink ready.
- Good calligraphy studies bibliography
- Calligraphy Qalam: a general introduction site