And I don't mean creating one page and then replacing keywords to create five different pages. The content must be different in each page. I created an exercise tool to help me come up with information for each page. This tool is also included with your site's critique. Some Search Engines robots do not use META tags.
Every engine is different.
Again, read the Webmaster's rules for submission. Others like links, and so on. Read the rules of each engine. I don't know what to sell on my Web Site. Many businesses that start a Web site already have product or service to sell.