Here is another website using the Spotify API (you can't be bored with this API :) ). This website shows in which countries albums are available. Hopefully it will make it easier for people to check availability on albums and why certain albums are greyed out.
All you need to do is to enter a specific album or an artist/band to get all the albums. The website is found here.
Feedback is appreciated and thanks in advance!
One last thing made this website quite quick so the design isn't so appealing.