Databases that measure citation impact:
Find your research impact with Publish and Perish
Are you applying for tenure or promotion? Do you need to prepare for your performance appraisal? Publish or Perish is designed to help individual academics to present their case for research impact to its best advantage, even if you have very few citations. You can also use it to decide which journals to submit to, to do a literature review, to do bibliometric research, and more.