No that it really matter too much (depending on your hair and preferences) but I wanted to mention that protective styles and the "no contact" styles referenced by the Grow Afro Hair Long website are slightly different concepts.
Protective styles, a method espoused by Wanakee, refers to styles that do not allow the ends exposure to the air at all. In addition, and by default that also do not rub against the clothes because the ands of the hair are taken completely out of the air. The theory is based on the idea that the air itself acts as a drying agent on the hair.
No-Contact Styles are advocated by Robin at the Grow Afro Hair Long site and by that Robin means that the ends simply should not brush up against the clothing. This theory is based on friction's negative impact on the hair's ends a opposed to the air itself. The difference means that loose twists where the hair is casually pulled into an updo but the ends are still out, as well as ponytails, still qualify where they would not with Wanakee's protective styles idea.
That said: buns, french twists, and other styles where you take the ends out of the air completely would be good to try if you want to follow Wanakee's method. Ponytails and less binding updos that leave some length exposed would qualify if you wanted to take the "Grow Afro Hair Long" approach.
Which you theory you decide to subscribe to is based on you and your preferences. Hope this gives some ideas tho. I put my hair in ponytails sometimes and sometimes just twist it into little coils that all converge ino a bunlike formation at the back of my head (like little pincurls that all end up on the same spot on my head). Other methods of pulling the hair up - are either too binding and give me a headache or don't stay in because my hair is too slippery.
HTH some. /images/graemlins/smile.gif