I'm working on creating a logo for my start up...I'm currently using Gimp 2.6, which is great, but i'm having some issues with the quality of my logo when I upload it to twitter and facebook. I've made it 1600x1200 and 300dpi, so I figured that it should be ok to be stretched in any way for printing or online publishing. In the Gimp program and on my faptop it looks fantastic but when I load it online it gets a little pixelated. Not much but enough to bother me and not look as professional as I would like. SO my question is, what can I do to fix this? I've heard that a Vector logo should fix it but i'm not sure, just wanted some opinions on here first before I move forward. And it only has 3 colors, so it's not overloaded with colors to cause this. When I upload it online it's as a Jpg.