Web pages will usually include a date of last revision at the end of the page. Topic areas of continuing and rapid development, such as science and technology, demand more current information. On the other hand, topics in the humanities often require material that was written many years ago. Further editions indicate a source has been revised and updated to reflect changes in knowledge and include omissions. Also, many printings or editions may indicate that the work has become a standard source in the area and is reliable.
Publisher Note the publisher.
If the source is published by a university press, it is likely to be scholarly. Although the fact that the publisher is reputable does not necessarily guarantee quality, it does show that the publisher may have high regard for the source being published. This distinction is important because it indicates different levels of complexity in conveying ideas. If you need help in determining the type of journal, see Distinguishing Scholarly from Non-Scholarly Periodicals . It is not always easy to separate fact from opinion.