building a site is very simple, but to succeed in operation, so that site survival is really a simple thing. Especially for the domestic first-line small and medium-sized site for the webmaster, development site need to pay more efforts. Because of the operation and development of small and medium-sized sites, there are a lot of limitations. Five major stumbling block below the author discuss the limitations in the small and medium-sized site operators entrenched on the.
: a stumbling block double restriction of energy and technology