Working with a link building agency can be a valuable part of SEO strategy. Unfortunately, there are a lot of shady agencies out there that use Black Hat tactics and risk getting you in trouble with Google. Here are my tips for vetting a link building company before you sign on the dotted line.
First of all you need to what exactly is a Nofollow link. This is particular HTML Value that is often used to give some information to the search engines. They are meant to tell the search engine if they should follow the link or not. This is a good way to control the web traffic according to your wish.
The Nofollow links are great options to stop spam and prevent the false indexing of a web page in the search engine results. There are many Nofollow links that are being used in the posts now-a-days. This is done when it is known that the content of that particular post is threatening for the entire site.
Where to use the Nofollow links?
There are certain cases wherein you are allowed to or you should use the Nofollow links. Whenever you feel that the number of outgoing links has become bigger than it is required you can attach a Nofollow link to the posts.
Google is harder to manipulate than the other search engines, and Google tends to trust new sites much less than their competitors do. If you run a new website, do not expect to rank well in Google for competitive queries until AFTER you rank well in Yahoo! and MSN.
If you have an old, well-trusted domain but have not focused on SEO yet, then doing simple things like fixing up your page titles and gaining a few authoritative or descriptive inbound links might be all you need to do.