What do you mean? Programming language or content language? I think the content language is depend on your target visitors
I think he is asking in what language should the site be build in. If this is your question , then php
Yeah Search engine see sites in HTML as far as i am aware. Dont seem to understand what the original poster is trying to say
When you are programming with a language like java , it is difficult to do some things which you can do easily in php. A site having too much AJAX and java script is not SEO friendly
This is all you need to know. Even if you are talking about linguistics of humans (English, French, German, etc) it doesn't matter to Google. Everything is crawled for keywords and content as plain HTML or XML, nothing more. Programming languages don't matter, CSS doesn't matter, JavaScript doesn't matter, and human language choice definitely doesn't matter.
Javascript is not a search engine friendly language. Php now is more popular, and I know some sites are transforming from asp to php.
better you use .net due to this program is the latest release from Microsoft, and I think in the next year will be used in big community.
Spoken Languages? Or Coding Language? Don't know about spoken language, but anything that contains valid XHTML and Clean CSS is good.
Well from the search engine perspective there is absolutely no difference whether the server side of the website is coded in PHP, ASP, JSP, CGI C or even Assembly language, because by definition all of that happens on the server side and the search engine (just as a normal user) sees only the output. It's probably true that many people are switching from ASP to PHP, but the reasons have likely nothing to do with SEO.
PHP is excellent, although more difficult for beginners. If you ahve no programming experience then i would use javascript and html.
SE only read html scripting language, can be any language (php, asp, .net, colfusion) as long as you programmed it with no error, you can use the html validator for that. make sure that you include all the relevant html tags while you embede scripting language with html javascript is the only scrip that is not seo friendly, simply becuase this script tag is redable via SE, and it does not contain any SEO content within. php, asp, coldfusion, donet on the other and uses a server that will "convert" the script into html, so it is very redable by the SE and your browser, which can be embeded with html tags as well, making it very SEO friendly. hope this helps