Don't buy Blueline Pro products
I bought some inks from Blueline. The prices were pretty good and the shipping was cheap. It took a few weeks to arrive, so I didn't want to buy from them again.
They're mainly famous for papers. Cheap crappy bleeding ink all over the page paper. I get handed it at cons to do sketches on and it's always sucked eggs. Use a nice Strathmore instead (here's a link for a local Chicago art store). Phil Noto lent me a sheet of Strathmore Windpower and it's the nicest Bristol I've ever used.
After buying inks from Blueline I've been overwhelmed with spam from them. I've "unsubscribed" twice and it hasn't worked. When I get a chance I hope to report them to the FTC for violating federal spam laws.
So if you want your drawings to look printable and clean, and your inbox clear of harassing sales emails, stay away! I regret ever dealing with them.