What if I don't write well?
You don't have to write a lot. Seriously your readers will appreciate quality over quantity.

If you seriously aren't a good writer? Start out by posting photos with simple one line captions. Work up to writing longer posts. Use Google to check questions you have about grammar like the use of colons, semi colons, parenthesis, quotation marks. The more often you do it the faster you'll learn and soon you'll find your overall writing skills will have improved. I know my grammar is not always perfect but I do my best and appreciate when readers let me know when they spot a typo.

Just a paragraph with a picture is enough to create an interesting blog post. Humor is always good so if you can make it funny even better. And be sure to use spell check. This is one of my favorite SC sites because you can test entire blocks of text if the program you are using doesn't offer it: www.SpellCheck.net