Rss to twitterfeed is the big winner, you can update all you account's at once. Much less work. We like that.
Do you need to ping after each post? I have a blog that I am slowly building up but I'm not sure what a ping is.... Thansk
search engines, aggregators, blog catalogs, and social websites are user driven. They rely on bloggers to send them a ping whenever there’s new blog content. That’s their cue to go fetch whatever new material is there and save or index it accordingly. so essentially yes each time you add new content you should put a ping out there however if your adding lots of posts daily and pinging them all you can get penalised as a spammer. If your using Wordpress there is a section for you to add the ping servers in and everytime you add a post it will ping them for you. Read more at Wikipedia