Many of us, when we make a website or article, we want it to be #1 in Google search results ranking. This create more traffic, many than you can imagine, thus getting more sales, or getting more money via adverts. ( eg. Google Adsense)
But to get the No.1 spot isn†t easy, there are million of competition out there, and Google dosen’t really reveal much of its secret. But we do, however, have some tricks and tips, which google has given us , and some of which, users like me, have found via researching, and experimenting. And I would, strongly recommend doing this! Research and experiment.

I have voted on many factors which affect how google rank their search results, some of which, are very crucial; and some of which can bring an average of extra 1 million traffic through the doors.

Keyword Tag used in the Title
We have seen great and rapid results modifying the keyword use in the title, especially for large branded sites that already have thousands of IBLs. Again, with everything, this is also dependent on the word's usage within content and IBLs. Additionaly, the "prominence" of the keyword (closer to the begining) seems to help incrementally, especially with sites that agree to place their brand name after the keyword
Not only is it one of your strongest chances to impact rankings, it is undoubtedly your BEST chance to convert a searcher to a visitor within the SERPS. Get the click, get the conversion.

Keyword Use in Body Text
It is important to use the keyword phrase throughout the page where it makes sense. As engines get more sophisticated, it's not just the targeted keyword phrase that counts, but the mix of all the words on the page that help to determine what the page is about.
However, If it is overdone it can suppress rankings. I think they are moving more toward topic analysis to learn what is relevant though.

Keyword Use in Domain Name
Using a keyword in the domain name is only helpful if you separate the words with hyphens. General speculation is that too many hyphens might trigger a trust issue with the domain, so more than one or two hyphens is not recommended. A good brand name is always better than a keyword-filled domain.

Keyword Use in Page URL
Not weighted anywhere near as much as an exact match domain name, but helps improve CTR (and thus relevancy if CTR factors into relevancy scores) and some people will link to pages using the URL as anchor text.

Keyword Use in Alt Tags and Image Titles
When an image is used in place of anchor text, the alt acts as anchor text. Alt attributes for linked images do have some importance when it comes to SEO. Alt attributes on regular images are important for usability (think mobile devices and screen readers) but not for SEO.

Keyword Use in Bold/Strong Tags
Has some weight as a ranking factor, but not very much. Effective usage might lie in what type of tag you use, but its still undetermined. Bolds are for markup, strong is for emphasis. I generally use strong tags and highlight 3-5 keyphrases on a page in slight variations.

Keyword Use in Meta Description Tag
Descriptions are important. Need to be unique for each page and contain target keywords to encourage search engines to pull snippets from it. Make it interesting!

Link Popularity within the Site's Internal Link Structure
Have seen multiple examples of top rankings for competitive keywords with only inbound links pointed to it. Cannot forget to use anchor text links within the content when applicable, which incrementally boost the Navigation link's value, IMO.

Age of Document
Older documents may be trusted more, especially if they are well cited and do not have many broken links in them. For blogs and news sites new documents may tend to have high PageRank values due to internal site structure. New documents may also be given a freshness boost.
Fresh documents on a trusted site do get spidered more in the beginning. Domain age is more important than document age. Thus a document on an older more trusted site will rank better than one a newer site.
With the recent update, Google seems to be rating this factor a little less, to prevent parasite hosting and piggybacking, but the age of a document, the age of the links and the domain itself, is still a very important factor.

Amount of Indexable Text Content
If too many pages are near the exact size or similar in size to many spam documents it may seem like the document has a higher probability of being spam. Google has also been growing more stringent with what they are willing to let in their index by requiring a minimum PageRank threshold to allow documents in their primary index. Longer and more athoritative documents are better than breaking articles into many shorter pages.

Quality of the Document Content
I am a strong believer that content is king. With good content comes great links.

Frequency of Updates to Page
There are lot of pages on the web that are old and have not been updated, but they rank well for competitive terms. I think frequency of updates to a whole site is more important.

Accuracy of Spelling & Grammar
While it doesn't influence rankings, poor spelling and grammar can influence visitors- negatively! Misspellings are sometimes targeted for rankings- in which case it wouldn't be a misspelling but the targeted keyword phrase. ;-)

Global Link Popularity of Site
Think of a web page as a town. If a city has freeways, airports, train stations, bus shelters and a port, that's a good indicator that it is an important hub. That orphaned web page with no links pointing to it? It may as well be a hidden tribe of Amazons that no one has discovered!

Age of Site
The older it is, the chances are they are going to be higher up in ranking, providing it is still being visited av. Amount. One of reasons why Xomba is getting more views every day!

Overuse of Targeted Keywords (Stuffing/Spamming)
Whatever method the SEs user to target stuffing, once a certain threshold is breached, the page in question gets flagged and some bad things could happen to your SE presence.

This said, over using the relevant information, which has been researched by myself and others, is going to lower your chances of getting the No.1 spot in Google ranking. Therefore, If I were you, I would reas this article, about ‘How to get #1 SPOT IN Google ranking’, and use it wisely, rather than abusing it.
BUT, sometimes over using can bring in the results, and bring 100x better results.