"Other" options are too vague, any poll with an other option is invariably ruined by an overabundance of people selecting that open ended option which does very little to help sort and categorize data.
I'd add options, if I saw people actually speaking of things that were valid relevant options that WEREN'T already covered...
or also
Were actually a statistically significant portion of listeners... Some things I just KNOW aren't going to bring in enough listeners to warrant a category.
For example... someone might make a request for...
"I saw at on a Flyer at a the coffee shop, Molten Java in Bethel Connecticut"
now.. I'm not going to add that as a category...
I might add "Paper flyer in a local business"
but, we haven't had a lot of requests pouring in for an option like that...
For example on this page...
"I was told by a friend via IM"
Is covered by "I was told by a friend" - the by IM part, ... not all that important to the data we are looking for. Might be useful if we do a poll of the people who were told by friends... HOW their friend gave the news... but... for now... We're just looking for sources...
Most of the reasons have been covered...