The Shetland Sheepdog or "Sheltie" looks very much like a collie that drank some sort of shrinking juice. Being a working dog, owners or potential owners should expect them to be energetic guys. I haven't met many, but have heard they do well in events such as agility and herding. Check out the AKC breed standards page for more details about this dynamic breed.
This is Sebastian. He is 11 years young. Yet another statistic caused by the downfalling economy - at least, according to the previous owner who surrendered him. The previous owner didn't neuter him ... I wonder how many puppies out there are his? I won't get into it - it's not his fault his owners were asshats. Anyway, if you're interested, he's located in Rives Junction, MI at Michigan Sheltie Rescue. He looks like a real nice old guy.
There are currently 1,021 Shetland Sheepdogs available for adoption on Petfinder.com today.