Originally Posted by landlord
Think its twitter address codes but don't quote me as I'm in the dark ages as well
No I think that they're "@" things. like "@gotchiguy".
hash tags are, I believe, used for things that are "trending". For example at the start of many television programs now there is a box with a hash tag, eg "#thismorning" which people must include in their tweets if they are talking about the show. This means (again, I think, I don't use any of this nonsense) that it is put into a list which the people at this morning can read and decide which ones to read out.
The most successful application of this I have seen is during a show where they say "tweet us during the show with hash tag blah di blah" then during the show the audience can tweet them and it comes to the attention of the people doing it. Heckling anonymously if you like...
Tweeting is for old people as far as I am concerned so I have very little interest but it is an unfortunate fact that you tend to pick these things up