One Way Linking
Back in the old days of seo (about 2-5 years ago) the best way to move up the rankings was with reciprocal link exchange. This method was simple as all you had to do is find a site that's actively exchanging links, add a link to them on your site, email them asking for one back, and wait for them to do so. This way, both sites have a link, everyone's happy.
All that has changed now since the search engines have clocked on to these reciprocal link exchanges and have been gradually decreasing their value because they want sites to naturally accumulate pure, natural links.
If they find a reciprocal link then they quite rightly assume that you have done a mutually beneficial deal to help each other. As such, they rightfully have decided that such links are no longer going to provide you with the shove up the listings that they once did.
The search engines, somewhat naive vision (particularly Google) is that the owner of a site, would find another site, be very impressed with the site, and put a link of his site to the site he has found. For example, if a window cleaner went with his family to go and stay in Devon for a week, and he found the hotel and the service so amazingly impressive that when they get home, he puts a link to the hotels site on his window cleaning site, advising anyone who is thinking of going to Devon to stay at that hotel.
Of course it didn't develop like this, instead search engine optimization specialists sprung up everywhere to manipulate the system. Initially, reciprocal links worked well, were easy to set up and very easy to manage.
Keeping in mind that you can only add a certain amount of links over a month to avoid being penalised for your link building, in order to accumulate enough link juice you will need to spend probably triple the amount of time building links to achieve top rankings than you would with one way links. If you can achieve top rankings at all with reciprocal links.
One way links are harder to initiate than reciprocals and are harder to manage and track, but they will get your site ranked higher in the shortest time possible. There has been talk of reciprocal links being downgraded to zero value, but I do not believe this will happen because there are large companies with suppliers and partners that they will want to exchange reciprocal links with and they should not be penalised simply for having business partners.
If you want to build high quality Google friendly one way links to your site, click add url or add url