buildawhale is a bid bot. And thus by sending in an 1 SBD + bid (please read the rules to avoid losing money) gets you an upvote and a potential chance to be in the digest. If you want to be featured in the digest you can send 3 steem to buildawhale with your url in the memo and we will put it in ASAP with curation. This option doesnt come with an upvote though.