Ok .. You are here so I assume you really want to know.
Here are the facts about Backlinks be it google or any search engine you are trying to impress.
Let's talk about your landing page first. ( your website page)
It must be optimised. In other words it must contain all the keyword and keyword phrases you are targeting. I am sure you all know that. Just be sure to place the main term into your title and description and sprinkle it throughout the text body along with other terms relavent to your topics.
Here is the crunch.
There is no requirement for your inbound link anchor text ( which should match your landing page keywords exactly) to have any relavence to your web 2.0 blog articles promotional material.
For example if you go to a high page rank profile site or forum and simply add your profile and webpage url (with or without anchor text) then you have no subject to relate too. ( ie no relavence ) but the link is still very valuable. The same applies to articles published with the sole intention of adding backlinks to your site. The only relavance applied is if the anchor text matches the keyword or keyword phrase on your site.
Now ask yourself " Does that make sense?"
The answer is YES it does.
The search engine algorythm matches your anchor text to your landing page keywords - nothing more. It then allocates your site some merit by looking at the quality of the origin of your inbound link.(ie The page rank of the web 2.0 your article is published on.)
If you are using web 2.0 submission services to submitt articles with the sole intention of gaining backlinks be aware that most of your submissions are lost in cyberspace and will not be read.
The good news is your backlink is not lost and will remain indelible. Article sites (eg those that require your links to be in a bio box) are different and your article ought to be relevant because people read them.
Conclusion:
These Internet Marketing related articles can be used to promote any topic, even obscure niches (We have a video in the members area showing exactly how).
That's it. I gain quality backlinks using non relavent articles posted in submission services such as SEO Linkvine SENuke
Get you spin ready articles here. The Leading Articles You can have one free article to test.
Ps. Ping every post at Pingler.com (superior free service) or SENuke if you use it.
CasperMartel@CaspersCasinos.com