Check out About the Only Time I Use “It” by rogersgeorge. Here is an excerpt:
A common way to write poorly is to use “it” as the subject of a sentence when you decide you’d have to think too hard to come up with a real subject. For example, I could have written, “…when you decide it’s too hard…”
This use of “it” is called a false subject (or dummy pronoun in the…
The full article is available here.
