Hello , If you have a site of pictures , and people insert them in there signature or on there web page (hot link) are those counted as a backlink to the main site ? or for a backlink to be counted it need to be a hypertext <a href ... and what about a link on an image . Thank's a lot .
The link will be counted whether there's an image or text inside. If using an image, specify the alt attribute like you would your anchor text. These are basically equivalent to a spider: <a href="http://yoursite.com">Anchor Text</a> <a href="http://yoursite.com" alt="Anchor Text"><img src="..."></a>