(1-1) • What source do you use to get a Nature Aquarium information?*

(1-2) • Please fill in the Name/Title of source or URL which you usually use.

(2-1) • Have you ever purchased a digital book (E-book)?*

(2-2) • Do you know that ADA is publishing the nature aquarium information magazine "Aqua Journal" on E-book service?*

(2-3) • If yes, how did you know the "Aqua Journal" on E-book service?*

(3-1) • Have you ever read the Aqua Journal Digital?*

(3-2) • If yes, please rate following subjects.*

(3-3) • If no, why did not you read the Aqua Journal Digital?*

(4-1) • What kind of topic interests you the most about Nature Aquarium?*

(5-1) • Are there any other comments you have for ADA?