White witchcraft is a common theme in movies and TV stories, but it's a bit more of a tricky subject than you might think. If you have already done some study into Wicca or witchcraft, you probably already have a little introduction into the differences between black and white magic spells.
If you have decided to work with white witchcraft, that generally means you will only cast spells with positive intention and not do any hexing or curses. Of course, not everything can be labelled quite so neatly and you may have some thinking to do about your intentions when it gets into some of those in-between gray areas.
Some people feel that the whole concept of white magic is impossible to achieve anyway because everything you do will effect someone else, and that can end up with all kinds of consequences that go way beyond your original intentions.
Instead of worrying about the details, just live your life in a good way and don't deliberately try to hurt people. That's usually good enough. Of course, sometimes other people deserve some negative energy but that's another topic altogether.
Sometimes people add the "white witchcraft" label to themselves just to make other people feel less nervous. So many people misunderstand what witchcraft is that they need a little (meaningless) assurance that we're not evil.
So if you are looking to get involved in white witchcraft, that really just means you have a positive attitude when you cast spells and that you never seek to harm another person. Pretty much all the spells on this site would fall into that category, but I do have a few pages specifically on white magick spells that you can check out.