The first step in coming up with any new idea is to know exactly what it is you want. After all, gid=0 [docs.google.com] if you don't know what you want, you will probably not get it, unless you count on blind luck.
For Search Engines Optimization (SEO) meta tags let the search engines know what your website/blog is all about. Something new bloggers need to realize about meta tag settings is to be very specific and to include a variety of things about your website/blog.
The number one error folks make is thinking that a single bamboo cane grows gradually over a period of years like a tree or shrub.