30d - A web album with a 30-day life cycle

30d is an online photo album service from Japan. However, unlike most online albums, every album you create has only a 30-day lifecycle. Simply put, the album will automatically expire after 30 days. We can tentatively call it a short-term album. Of course, if you wish, you can create n number of such short-term albums, and each of these albums allows you to upload up to 500 photos. The registration process is simple; besides the mandatory email address, all you need to do is specify an album address. Afterward, you'll receive an album URL similar to http://30d.jp/ID/1, where "ID" is your username, and the number afterward represents the sequence number of the album you've created (for example, 1 means it's the first album). The specific usage method won't be detailed here as it's quite similar to regular online albums. For images that don't require long-term storage, this service is quite practical, allowing you to quickly share pictures. Interested friends can try it out for themselves.