I have been posting my attempts at calligraphy on a tumblr blog made for this purpose.
Check it out at Pica learns Calligraphy !
Those are just a few examples of the posts you can find there.
The plan is to post most of these on this blog. Maybe not every piece, but it could be a weekly collection of what I post over there. Or I will post themed artworks or works in progress or steps of my improvement with certain scripts.