Share 'How long do you spend on social marketing?'

I just submitted a post to my blog. Spent about 2 hours on it - spell checking, tagging, keyword research, linking to others, getting pictures for it etc... Then I buzzed via Web2Submitter, ASBUZZGROUP, other social sites etc... It took me about 4.5 hours in total. I have not stated work on my remote blogs yet. Are the rest of you having similar work hours, or should I be quicker?