manilaboy,
The value in those kinds of links have been extremely downgraded by the search engines, Google in particular. This is even more so if there isn’t a lot of topical, contextual connection between the sites…from the search engine’s point of view, “Is there any good reason why this site would be linking to another site? Is this link natural or “coerced in some way?”
At best, there may be some value, or at least no harm, but there may even be times when these links could hurt your site. If the anchor text is the site or business name, it may be safer than plugging in keyword anchor text.”
Unfortunately, the SEO risk here is probably greater than the potential payoff. The safest approach here may be to have the links for humans as a marketing vehicle, but nofollow the links.
cheers