These are the characteristics of good blogs.

use corporate jargon and abbreviations

use industry-specific vocabulary

updated frequently

use a friendly, professional tone

enable users to edit corporate documents

Updated Frequently

Use a friendly, professional tone.

Explanation:

A blog can be defined as an informal journal posted on a webpage either by an individual or group of people. A blog is written online and updated regularly.

There can be many purposes of writing a blog; it varies according to the writer. A blogger may write to express his/her feelings, views, etc. Or they can also write to share information related to anything such as education, etc.

The characteristics of a good blog are that it is updated regularly and written in a friendly and professional tone. A blog should be different from the existing ones, they should share the information which can not be found on other blogs.

Thus the correct answer is option third and fourth.