In simple terms, a blog (which is short for a Web Log) is like a diary or a Captain's Log on a ship. Unlike web site pages that are static and only change when there is a need for an update or addition, blogs constantly introduce new material. Entries are called "posts" and are usually written and owned by the website owner or administrator. The post can be anything that the writer feels he or she would like to share with visitors to the web site. It might be an item of news; a technology tip or comment; an interesting or amusing snippet, picture or joke; an observation on current issues; or something the writer wants a mild "rant" about.
Though some blogs have a distinctly political flavour or bias others are intended to be everyday fun. Inevitably they may reflect the views or opinions of the writer but should never be written deliberately to upset readers. Unlike other forms of social media (Facebook, Twitter etc) which have an element of spontaneity about them (often in the heat of the moment), blogs are usually written with some degree of thought before pressing the send button.
Visitors to the blog are not permitted to amend or otherwise add to the blog but ARE free to append their own thoughts or comments - whether in support of or in disagreement with the writer. Comments on blogs tend to be much more courteous - even if expressing an opposite view - than other forms of social media where hatred, profanity and rudeness sadly predominate.
If you wish to comment or add your thoughts you can fill in the comments box below each post. Bear in mind that, unlike an email or letter, such comments are not a direct communication with the writer but can be seen by all who visit the blog. They will be seen by the writer who may come back to you privately or through the medium of the blog.