Ok, can someone help me here? (Seamus, you back from Ireland yet?)

When you read Mudcat posts
In the presence of ghosts
And you know you're not reading alone

Then you think, "This is fine
Yes, in fact it's sublime"
And your ghostfriends agree with a moan

Is this anapests?

Good grief, I know I can't be very smart
If I can't figure out right from the start
Which words are dactyls and which aren't
Which ones to use, and those I daren't
And when to give up poetry for art

(mostly) Iambic pentameter?

What are the four footed iambic lines called?

Anybody?