Since 'great' is an adjective, "I'm doing great" seems to be incorrect. It should be: "I'm doing (adverb)." You could say "I'm doing well." Could you also say "I'm doing greatly."?
What part of speech is long playing the part of in the bold parts of the quotations below? For one thing, it shows at a glance how much money is on hand for any particular purpose all month long. ...
I just read on Google+ that: You are in Jonathan's circles too But I always thought that you couldn't use too there. Am I wrong? (because Google can't be wrong, right?)