As a web designer, I receive emails every day from individuals wanting to exchange links with me so as to attract the search engines to their site. While link exchanges can be a valuable tool for getting your information out there, one should first be very careful about hooking up with “link farms” – sites that are simply collections of links (and as many links as the site owner can possibly collect!) solely for the purposes of duping the search engines into thinking their site is more popular than it really is.
Another warning: a site owner can put their links page into a “no follow” directory, so that essentially the search engine will IGNORE the links page in question — and there’s no way you can detect this.
Be careful to be selective with your link exchanges: if the site that you are linking to is not in your area of business, then there’s really no likely benefit from linking to it. Here is a case where MORE is not necessarily BETTER. Choose whom you link to wisely.
there are hundreds if not thousands of scam running on the internet, be always wary about it.`-*