On Twitter, is it 'he or she' or 'they' or 'ip'?

On Twitter, is it 'he or she' or 'they' or 'ip'?
Twitter users may value brevity in their messages, but that doesn't mean they don't think about the social implications of language.
Games Comprise Nearly 1/4 of the App Store
We knew the game category was popular at the iPhone / iPod Touch App Store, but this popular? According to iPhone app tracking site MobClix, that number now exceeds 6,000.
Obama Aims to Shield Science From Politics
When President Obama lifts restrictions on funding for human embryonic stem cell research today, he will also issue a presidential memorandum aimed at insulating scientific decisions across the federal government from political influence, officials said yesterday.