Outbound links

  Outbound links are a drain on a site's total PageRank. They leak PageRank. To counter the drain, try to ensure that the links are reciprocated. Because of the PageRank of the pages at each end of an external link, and the number of links out from those pages, reciprocal links can gain or lose PageRank. You need to take care when choosing where to exchange links.

Inbound links

  Inbound links (links comes from outside) are one way links to increase a site's total PageRank. The other is to add more pages. Where the links come from doesn't matter. Google recognizes that a webmaster has no control over other sites linking into a site, and so sites are not penalized because of where the links come from. There is an exception to this rule but it is rare and doesn't concern this article. It isn't something that a webmaster can accidentally do.

How is PageRank calculated?

To calculate the PageRank for a page, all of its inbound links are taken into account. These are links from within the site and links from outside the site.
  PR(A) = (1-d) + d(PR(t1)/C(t1) + ... + PR(tn)/C(tn))
That's the equation that calculates a page's Rank. It's the original one that was published when rank was being developed, and it is probable that Google uses a variation of it but they aren't telling us what it is. It doesn't matter though, as this equation is good enough.
In the equation 't1 - tn' are pages linking to page A, 'C' is the number of outbound links that a page has and 'd' is a damping factor, usually set to 0.85.
We can think of it in a simpler way:-
a page's Page Rank = 0.15 + 0.85 * (a "share" of the PageRank of every page that links to it)
"share" = the linking page's Rank divided by the number of outbound links on the page.
Step 1: Calculate page A's rank from the value of its inbound links
  Page A now has a new Page Rank value. The calculation used the value of the inbound link from page B. But page B has an inbound link (from page A) and its new value hasn't been worked out yet, so page A's new PageRank value is based on inaccurate data and can't be accurate.
Step 2: Calculate page B's Rank from the value of its inbound links
  Page B now has a new Page value, but it can't be accurate because the calculation used the new Page Rank value of the inbound link from page A, which is inaccurate.
It's a Catch 22 situation. We can't work out A's Rank until we know B's Page Rank, and we can't work out B's Rank until we know A's Page Rank.

What is Page Rank?

Page Rank is a numeric value that represents how important is a website or a webpage. Google figures that when one page links to another page, it is in fact casting a vote for the other page. The importance of the page that is casting the vote determines how important the vote itself is. Page Rank is Google's way of determining a page's importance. We may refer to PageRank as "PR".

Types of Directory Submissions

• Manual Submission
• Automated Submission
• Niche Submission
• Free Submission
• Paid Submission

What is Crawler?

A web crawler or web spider is a script which surf World Wide Web in a regular manner. A web crawler is one type of bot, other names are web spider, web robot, bot, crawler, and automatic indexer.

Most Important On-Page Optimization Techniques

Title Optimization:

A site’s title tag is the most important website optimization component. A title tag should be short but description enough for visitors to identify the website.

• Your Name/ Business Name / Site Name is very important for flouring suggest. If you feel that your customers may search you by your brand name than it’s also useful to put it somewhere in your title.
• If you want to rank for a particular keyword it is always good to place some in your title tag. A Title tag represents the whole flavor & content of your website.

Coding:

<TITLE>On Page Optimization</TITLE>

Meta Tags Optimization:

A site’s Meta description should contain a brief description of your website. This small text can be considered as a selling snippet, if a searcher finds it appealing he is likely to click and go inside your page to find out more information. But if your Meta Description is too generic and isn’t written too well then there is a good chance that your site will simply be ignored.

Coding:
<META NAME="DESCRIPTION" CONTENT="Optimizing On-Page Factors for Search Engine">
<META NAME="KEYWORDS" CONTENT="separated by a comma,but not a space">

Keyword Optimization & Synonyms:

Your site’s content wants to be modify in intensive way that it will be suit both search engines & your readers. Filling your site with more keywords can make your site unreadable. So you will need to have some sort of balance between your keywords & your content.

• Keyword Research: Should take a reesearch before you decide on your keywords. Too many free tools are there that can help you to do keyword research. Some of my favorites are: SEO book Keyword Suggestion tool, Google Adwords Keyword Tool & Overture Keyword Tool.
• Keyword Density: Try to have a moderate keyword density so that it can help the search engine to determine that your page is indeed related & relevant to the keyword that you are targeting.
• Synonyms & Related Keywords: I personally like to use synonyms instead of having a high keyword density. This helps to make my content sound natural but still helps in SEO.
• Long Tail Keywords: It’s often good to target some long tail keywords as they are comparatively easier to rank for. During your keyword research you should be able to gather some good long tail keywords that you can optimize your site for. But you can also come up with your own long tail keywords; for example try adding some common words like – ‘best’, ‘free’, ‘cheap’, ‘top’ etc. along with your actual keyword and you might eventually get some good long tail keywords.

Link Optimization:

It is important to optimize your internal & external outbound links for search engines and also navigate your visitors.

• Try using good Anchor Text when you are linking to other people. Include the appropriate keyword in the anchor text which gives the outbound link a ‘proper meaning’ and value.
• A good & clean Internal Link Structure with proper use of anchor text will definitely useful.
• If you are using a CMS, then try using permalinks. This way your keywords/post title will be on the link itself and thus it will valued more by the search engines.

Image Optimization:

If your site has lot of images, you need to optimize them too as they can’t be read by the search engines. It’s very easy for a human reader to interpret the image into its meaning. However for a Web crawler the whole interpreting process is completely different. Search Engine spiders can only read text but not images. So you need to use some special tags for your images in order to give them some meaning.

• Alt text : ALT text or Alternate Text is the text to describe your image when your mouse moves over an image on your web page. The text should be meaningful but short. You can use your relevant keywords as ALT text. If your browser can’t display the image for some reason, the alt text is used in place of that particular image.
• File name : always use meaningful file name for your images, use names like “apple-iphone-cover.jpg” instead of meaningless “DSC24045.jpg”. Keep image file name same or similar to the ALT text.
• Image Title : always use the title tag in images which will show the title as tool tip when a user moves his mouse over the image. Example of an image with title tag: [img src=”http://imagelocation.jpg” alt=”Image description” title=”Title of the Image”]
• Image Linking : Whenever you want to link to your image, use the image keywords in your link text. Example: use “view an Apple iPhone”, instead of “Click here to view” as the anchor text.

SMO

            Social SEO or Social Media Optimization (SMO) is the method of social media act with the purpose of attracting specific visitors to website aggregation.