PubCrawler is a free "alerting" service that scans daily updates to the NCBI Medline (PubMed) and GenBank databases. PubCrawler helps keeping scientists informed of the current contents of Medline and GenBank, by listing new database entries that match their research interests.
Perl语言写成，需要安装ActivePerl-5.6.0.618才能运行，8.7M，而安装ActivePerl需要先安装MsiInstaller，1.4M（Windows2000不需要安装），是一个免费的“警示”软件，可以检索NCBI Medline文献库与GenBank核酸序列库每日更新的内容，使科学家获得其研究课题相关的科研方向的最前沿文献与信息。
