navigate bar .

almost all inner page have navigate bar, I mean inner page link back to hompage by usually with anchor text "home" .if we have 100 inner page, homepage will got 100 back link .is it good to put keyword in anchor in navigate bar? why no site do this? what i will do is:make gif that show "home" and let alt be your keyword. so it look normal but let kw in your alt. is it good?

 

Because it's not worth much. You have to gain extrenal links (links from other sites, not inner...)

 

Actually, internal links do matter. They may not count as much as external links, but if you have 100 pages with decent PR all on topic and they all point back to the home page with "keyword" instead of "home" it does help.
Even better: add breadcrum: so that each page links to the category page (I guess now the call them silos AND to the home page.

 

breadcrum? I've not heard of this before, but then again, that's not saying much.

 

google will not count the inner page or site with same IP as a "counted back links" they prefer the vote or links from other sites that are in the same genres and similar content and different IPs. This will show that your site have a good and quality content and people like to link to your sites. orelse i would already got like 3000+ back links coz i got all those inner pages links back to my main pages XD.

 

in literal... let others(other sites) tell(backlink) about you, that's how google rate your popularity and... if you are a businessman it is better if other businessman justify you are or as your reference(relevant sites)... much less if those who didn't know you (unrelevant sites)...