Hey jbenx,
Thanks for the critiques. I will definitely take it into consideration.
RE: ASIN and ISBN - I was torn on whether to include those, since I agree with you that it can be confusing. I also have the option of dropping the entire url in there and it will pick the ASIN out automatically. I figured that would be easiest for users.
RE: email - I didn't want to do the email thing because then I'd have to deal w/ unsubscribe and spam issues. I like making services that don't require a signup.
You could headline the box with "URL for the product or wishlist you want to follow", and then, in a smaller and greyer font below put "(you can also just put the ISBN or ASIN in there)".
RE: ASIN and ISBN - I was torn on whether to include those, since I agree with you that it can be confusing. I also have the option of dropping the entire url in there and it will pick the ASIN out automatically. I figured that would be easiest for users.
RE: email - I didn't want to do the email thing because then I'd have to deal w/ unsubscribe and spam issues. I like making services that don't require a signup.