significant differences of injecting rather than smoking marijuana.

[mrdevious]

What about eating it? I suspect that if there are any advantages to injecting it over smoking it, they would be pretty much the same advantages offered by just eating it.

yeah, but you have to cook it in with food to eat it (eating it strait won't work for the most part), eating can have a delayed and unpredictable reaction (like getting high in 20 minutes or the next morning), and you have to use up a LOT more to get the same effect.