It isn’t uncommon to see bloggers that don’t show consistency in the way they write and construct their post titles or follow the standard rules of grammar and capitalization.  I do not always adhere to these rules, but try to stay as consistent as possible whenever writing post titles.

Writing a post title can sometimes be the most daunting tasks of finalizing your blog post to be published.  The process for writing a great title that draws people in to read the content, even if there is very little substance, involves thinking about what readers are looking for, involving trends, and then relating any “brainstormed” ideas into the title.  Before you can hit the publish button, the capitalization should be correct or your work put into creating the post and title have been all but diminished. 

The Correct Way to Capitalize Post Titles

from What Words Do I Capitalize in a Title?

Capitalize: The first and last words of the title, all nouns, pronouns, verbs, adverbs, and adjectives.  In addition, conjunctions or prepositions five letters or more in length are considered option.  Either route is considered correct.

Do Not Capitalize: Articles - the, a, an unless the article is the first or last word of the title.  Prepositions of four letters or fewer, unless it is the first or last word of the title and conjunctions of four letters or fewer.  The particle “to” should not be capitalize when used as an infinitive (unless the word “to” is the first or last word of the title).

Applying Post/Blog Title Formatting to Your Blog

The rules for capitalization of titles is fairly straightforward and simple, but can be a challenge when you must deal with editing or naming posts with questionable words.  One thing to remember is that the way you format your post titles should remain consistent or your blog will begin to look sloppy and as though you don’t care about the time you do spend creating and developing your site.

Stick with one format throughout the lifespan of your blog.  You should either utilize the sentence case - capitalizing proper nouns and the first word of the title or title case - capitalizing the first and last words and any other words that should be capitalized (from above).

Different Examples of Headings

1. Sentence-style Capitalization: The Siamese cat jumped over the lazy St. Bernard
2. Poor Capitalization (all lowercase): the siamese cat jumped over the lazy st. bernard
3. Title Format: The Siamese Cat Jumped Over the Lazy St. Bernard
4. All Capitals: The Siamese Cat Jumped Over The Lazy St. Bernard

Examples of Different Styling in News Media

From these two examples, you can clearly see a difference between the usage of sentence case and title case.

CNN Home Page Sample

The New York Times Home Page Sample

Conclusion

Usage of the capitalization rules vary throughout the world, however in most locations the rule is based off the English language.

Find what works best for you - looking back, most of my posts use the “Title” format, in which many articles and words less than five letters are not capitalized, while I feel the usage of all capital letters presents a more clean, bold look to your blog, especially when using larger post titles.  

These tips discussed can be used for anything on your blog, heading titles, post titles, blog titles/tag lines, and even sidebar areas.

For additional information, there is a Wikipedia article - Capitalization which includes a more in-depth look at ways to form publication titles and a brief history of the different capitalization types.