Repeat Impressions. I have been a fan of their stamps for a long time. They have a huge variety of stamps and easy to use.
They also have weekly challenges and prizes and each week feature a stamp of the week. I'm really looking forward to this new adventure with this exciting company.
You can visit the store here at Repeat Impressions and their blog The House That Stamps Built . It is also on my sidebar.
You can also go right to their weekly challenges here. Monday will be the featured stamp of the week, hope to see you there.