Webbing and Chaining
Webbing and chaining are like brainstorming, on a spider web. Like brainstorming, these employ visuals to encourage free association and aid in the discovery of main ideas. Begin webbing by writing your topic idea in the center of a page and drawing lines that radiate out from it. At the end of each of these lines, or rays, write down all the ideas that occur to you. Brainstorm for a period of time, such as two minutes, and generate several different ideas. Then choose one or more of these branched ideas and do the same for it, generating more ideas.
Chaining is a bit more structured. Start by placing your idea inside a box, and then draw arrows from that box to another box, in which you write an idea that occurs to you. Each additional box may then logically suggest another idea to you.