Looking for ways to assess your impact as an author? Take a look at some of the following resources:

SCOPUS (subscription required)
SCOPUS provides an Author Search option that allows for a listing of articles, web sources and patents that cite a particular author’s work since 1996. The Citation Tracker feature also allows for generation of a Citation Overview chart (total number of times all works have been cited and the number of times a work has been cited each year) and calculation of the h index for an author since 1996.

• SCOPUS Citation Tracker
• SCOPUS h index 

Thomson ISI Web of Science  (subscription required)
ISI Web of Science provides an Author Finder option that allows for a listing of articles that cite a particular author’s work.  The Author Finder feature also allows for generation of a Citation report (total number of times all works have been cited and the number of times a work has been cited each year) and calculation of the h index for authors (date range depends on subscribed backfiles).  

• Author Finder Tutorial

Thomson ISI Web of Knowledge ISI HighlyCited.com
ISI HighlyCited.com is a freely accessible website that provides a listing the top researchers from 21 subject categories whose publications were the most highly cited for the period 1981-1999.

“ISIHighlyCited.com reveals the face of research–the people behind the accomplishments in 21 broad subject categories in life sciences, medicine, physical sciences, engineering and social sciences. These individuals are the most highly cited within each category for the period 1981-1999, and comprise less than one-half of one percent of all publishing researchers–truly an extraordinary accomplishment.”

• How Does ISI HighlyCited Identify Highly Cited Researchers?

Google Scholar 
Google Scholar allows for searching of a particular publication and retrieves results from a variety of sources such as peer-reviewed papers, theses, books, meeting abstracts, web sites, gray literature, and others. The results include the number of times the publication was cited in other resources.

PubMed FaceOff
PubMed Faceoff is a “mash-up” of PubMed, the Eigen factor of a journal and SCOPUS citations. It uses facial expressions as indicators for impact of a publication.