More SEO value is ascribed to internal links (with good anchor text) than many people seem to realize. I am often surprised at how many companies spend ages trying to secure inbound links from other sites (more on this later, page 132) but have no decent, keyword-rich navigation within their own site (where, after all, everything is under their control). We have already discussed breadcrumb trails (an important part of the internal link process). I am now going to consider your main navigation elements. How you implement your navigation is really up to you (and will depend much more on your design preferences than on SEO). However, usability studies have shown time and time again that the vast majority of people prefer so-called split-menu navigation, where tabs across the top bar of the page are used for navigating to sections, and link boxes in the left-hand bar navigate around the categories and content pages below. The main point I want to make, however, is that you should always use real text in your navigation elements rather than images. In these days of cascading style sheets (where almost anything is possible, in terms of styling), there is really no excuse for missing the opportunity for further use of keyword-rich anchor text in your links. In-context links are internal links that appear in the middle of your page. In a section or category page, you might attach links to the heading fields (so that people can click on them to access the next level down in the hierarchy). More generally, you might link key phrases, where they appear in the body text, to the content pages most relevant to them. My advice is to do this wherever possible but always in moderation, If every other word group is a link, your page will start to look silly. Done well, however, links aid navigation for the user and search engine alike. And don’t neglect the simple things on your web pages. Add a feed back form so that customers can give you ideas on how to improve the site. Give them a mailto: link they can use to send an email to a friend recommending your site, and use some Javascript to create an add to favourites link, so people can more easily bookmark your site.
yes internal linking is must. Google gives high weightage to those links. Thats secret of wiki and amazons high ranking for lot of keywords
Not only is it very important for SEO but also a great way for readers to move around your site better. It will give a clear understanding of what information is avaliable to them and they can go there imediately. I have nearly all my posts linked and it not only looks great but has a massive benifit to the viewers and as you said, very important for SEO.
Internal links give more weight to page they are pointing to which helps you compete with other sites.
The internal or inner links have an equal importance because its required a platform for our main keywords to sustain their ranking over the search engines for a long time!
Internal links is indeed important if your building links for your site. The higher quality it is the more chance for you get backlinks and the higher chance for you to get PR
Internal linking does help the search engines figure out what your internal pages are about. It is simple to implement, just make sure you use your selected keywords in the links.