The Facebook changes announced last week at the developers conference, and those in the weeks before, have major implications for the way employers use the site to brand themselves and build relationships with potential candidates and future hires.

Recruiters who now use Facebook exclusively or mostly to push out jobs will become even more marginalized by the increasing emphasis the social site is placing on engagement. Those who actively invest in courting their Facebook “fans,” offering content of value, and real conversations, will reap even greater rewards than they do now, earning their brand a place on user’s forthcoming Timelines, and the ability to broaden and measure their reach as visitors “Share” content with their own FB friends.

One of the consequences of these and the other changes Facebook is rolling out, is that it will be harder than ever for employers to compete for attention. Even before last week’s f8 conference, when the company’s most profound changes in years were announced by CEO Mark Zuckerberg, routine updates such as a “like” or a me-too comment, and job postings, were being moved to a ticker-style activity window on the profile page. Even more is likely to appear there as Facebook’s standards of what’s worthy of being a top post, and thus rising to the top of a person’s wall, become more stringent. (A good summary of the announced changes is available here.)