I m thinking of investing in hiring a programmer in order to create a useful tool for my site (maybe it will cost much) Do you believe that it is a good choice to offer this tool for free, to other relevant sites (with my link) in order to get some good/relevant backlinks to my site?
It is a good link-opportunity. But the success of that as a marketing endeavor is obviously dependent on whether or not people actually find it a useful tool. Some of your budget (or time) will also have to go into getting the tool noticed.
Tnx for the answer my whole promotion of the tool is supposed to be made here.. besides i velieve that the cost for the tool could be $$$-$$$$.. so maybe the risk is higher. But it is the only tool i can imagine, for the category the site is.