I want to post my photos online but I want my name watermark on each picture, what software do you recommend?

I use photoshop/illustrator myself as I know my way around it (was trained on it). However, to answer your question it depends on how comfortable you are with the programs or how much time/money you want to invest. So, if you're a complete novice and just want to put a watermark on a photo I would recommend Paint.net - it's easy to use and it's free, plus if you wanted you can do a whole lot more with it.

Thanks, Makonakins