Hi everyone,
I need your suggestions. Which is best way to link building, two way or three way?
Your suggestion will always appreciated by me. Thank in advance

One way link building is organic and hence best to improve SERPs.
Three way link building is definitely the best as long as you are linking to relevant sites.
Two way link building (reciprocal linking) on the other hand is against Google guidelines and hence your rankings may suffer a downfall.

Both the link building ways are good for getting traffic. If you can able to get the links from High PR websites than go to Two way link building. Otherwise One way and three way link building is better.

According to me two way and three way both are best for link building. In two way link building include forums and blog commenting both are use for get back link and increase traffic, directory submission is use for get backlink, article and other blog creation both are use for get backlink and improve traffic.Three way link building include link wheel. In this technique one site point to another site. 

Three way link building is better than two way link building.

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20 RSS Directories

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rsspect.com/ 6
feed24.com/ 5
feedsee.com/ 5
search4rss.com/ 5
rss-locator.com/ 0
everyfeed.com/ 0
pheeds.com/ 0

from here you can make 2 and 3 way links , just make link wheels

Really nice dear friend thanks for providing...