may my heart in Google Page Rank? what do you mean? Can you explain this? Thank you. If I have any good idea I will post, thx very much
Link excanges still work but not as effective as they use to be. I suggest tracking all link swaps to make sure someone does no pull a nofollow on your backlink.
If you do link exchange with too many irrelevant sites, you may end up getting yourself banned by google . What you are to do is, exchange links with only sites related to your niche.
You will get banned if you link to lots of "bad sites/neighborhoods" no matter if you linked exchanged or not.
I must disagree. The fact that one-way link (or link wheels and their permutations) are stronger doesn't mean two way links doesn't help. I saw several sites ranking high based only on two way link. I wouldn't recommend it as an SEO strategy but it does help. Btw, which one of the following is better for site D? a<->b, a->D, b->D OR a->D, b->D ???