What is a blog and how do u use it?

I'm 45 and I do not understand how to use/do a blog.

Can someone give me step by step instuctions on how to use them?

I was told it was good wisdom to have a RSS feed on my blog but I am new to them. Can you please give me some advice? And where I can find one? Thanks!

I want a blog about fashions and beauty trends. Where's the best place for one and is it okay to use brands and names in my blog without permission? For example if I used loreal or sephora in my blog... Please don't respond if you don't have real knowledge...

i want to start a blog im not to sure how to start the first blog post..i know what i want to blog about what topics etc..im just not sure how to start the first post.Could someone give me some ideas to how also???

Blogging in the classroom. I've decided to set-up a blog for my students this semester. This will be the place for their response papers, writing exercises and a few other tidbits. It needs to have access for 5-10 members, a very easy set-up, free-to...

My family and i are going overseas in acouple of months, for quite awhile. I cant use the internet as much, nor can i contact my friends often. Im planning to make a blog so they can see how im doing, everyone agrees i should. But I'm compeltely lost...

Should I use the built-in Shopify blog functionality? Should I use Wordpress and integrate into the Shopify framework using the "import external blog" plugin? Should I link to an external blog at, eg Wordpress.com, from the Shopify store? Goal...