Hat is one aspect of a source that makes it credible?
it details an opinion on a specific topic.
it is interesting to read.
it provides current factual information.
it is recommended by a friend.

One aspect of a source that makes it credible is that it should provide current factual information. A credible source should state facts that are based and proven with evidences. Readers trust the writers' output and therefore, it is very important to always use a credible source. Sources should be double checked, most especially the internet sources, for credibility.