Please always post an active link starting with http:// when posting to these forums. Alternatively, here’s how to link your username to your blog in your blog Dashboard -> Users -> Personal Settings -> then scroll down to Account Details. Then scroll down to where it says ‘Website‘ select the URL for your primary wordpress.com blog and then save changes.
Now every time you sign into the forum we can all click on your username and your blog will be linked to it. And every time you leave a comment on a blog your username can be likewise clicked and your blog can be instantly located.
Free hosted WordPress.com blogs cannot be equipped for ecommerce transactions. You can use a contact form or your can post an unencrypted PayPal button.