Are Meta tags programming make any difference?
Nowadays, Search Engine analyze title tags, image tags, link structure, directory structure, keyword density, relevancy, prominence, and proximity, total words on a page, word repetitions, total words in specific areas, alt tags, input tags, java scripts, comment lines, domain name, directory name, filename, etc. No search engine seriously scores Meta keywords. Some engines use over 100 things to rank a page!
Plus each search engine has its own unique way to rank pages, so you need to fine-tune different pages to exactly match the criteria of each one. Not only do they rank sites according to different parameters, but they change their criteria on a regular basis. As you can see, achieving and maintaining top ten ranking is not as simple as using Meta tags. Without serious avant-garde optimization techniques your site will never rise above the muddle of the millions of web pages each major search engine holds in its index.