The clawhammer technique of picking is primarily a down-picking style. The hand assumes a claw-like shape and the strumming finger is kept stiff, striking the strings by the motion of the hand at the wrist. Players that use this technique typically downpick the strings with only the thumb and middle or index finger, flicking the string with the back of the fingernail.
Although Clawhammer is typically used to play American Old-Time music, the purpose of this site is to share tabature of many types of musical genre that can be played, using this picking style, which I have learned and enjoy so much.
If you have any requests to find a particular tune in clawhammer banjo tablature, please leave a request here. If I know of the piece exisiting on another site, I will direct you to it. If I do not know of it residing elsewhere, I will consider tabbing it and posting it here as time permits.
Note: You will need a PDF viewer to open these attachments. Also, within most of these PDF files you will find a midi attachment which will allow you to hear how the tablature will sound. Of course, you will need the appropriate software to listen to the midi file.