Sometimes you need to go out and grab the talent you need, and that's where headhunters come in. Normally calling themselves something less bloodthirsty, such as employment agencies, these people aim to find the staff for you. Others simply send you resumes they think are appropriate. Some specialize in technical areas, others cover IT as well as catering, secretarial, and accounting. In the other dimension, some agencies specialize in senior executives, while others cover all levels.
Some companies now offer recruitment for equity, but that is only of value in startups.
Second, recruiters are not always clued in on technology and sometimes can send you poorly qualified candidates, thus wasting your time on extra filtering. You don't want to read DTP operator resumes for a DBA position just because they include Access in the list of packages they've used. Other people want security and reliable benefits, so make sure they know about the full range of benefits. If you're in the Internet business, you're not going to find folks if you don't have a generous stock option program. Whatever your recruitment needs, you need to define the work to be done as clearly as possible.