I wanna index my web site photos on google image section.How can I do it? Using alt not working ... help me.
First of all, you have to be patient. Images you upload to the web won’t instantly appear in search results. Also, are the alt tags you added relevant enough for the images? You can also try to add captions (this would require some extra CSS and HTML knowledge). Once Google crawls your website and indexes you images, they should be able to rank in Image Search.
I'll explain both alt text and image caption, to better understand the difference: - "alt tag" is the descriptive text which appears if you hover the mouse cursor on a image - a "caption" is the text displayed under the image (visible for visitors without any action). Captions can consist in a few descriptive words about the image or few sentences. Their purposes are different - the alt text is meant to provide alternative content for the image (lets search engines understand what the image is about, so that they can crawl and index it properly), while the caption describes the image, offering visitors additional information about the image - placing it in a context. Very important to know: do not make the alt tag the same as the caption.
The alt text must be relevant for the content of the image - it's a way to describe it for the search engines (you don't have to only write the name of the gif or jpeg). As for the caption, as I mentioned before, you need to know some HTML and CSS to add it to your webpages - http://webdesign.about.com/od/graphics/ht/caption_images.htm and http://wcmshelp.ucsc.edu/advanced/caption.html maybe can help you get familiar with the concept. Also, if you want your images to appear in Image Search, they have to be representative and original for your website's content - you can't rank with someone else's images.