Besides SCI and Zhi.com, there are many other important academic databases. The following are some common academic databases:

1. WebofScience: developed and maintained by ClarivateAnalytics, is one of the world's leading academic citation databases. It contains journal articles, conference papers, books, and more from a wide range of fields, including science, social sciences, arts, and humanities.

2. Scopus: Developed and maintained by Elsevier, it is one of the world's largest academic citation databases. It contains journal articles, conference papers, books, etc. from a wide range of fields including science, social sciences, arts and humanities.

3. PubMed: Maintained by the U.S. National Library of Medicine (NLM), PubMed is one of the most important literature databases in the biomedical field. It contains biomedical literature from the MEDLINE database, including journal articles, books, reports, and more.

4. IEEEXplore: Maintained by the Institute of Electrical and Electronics Engineers (IEEE), it is one of the most important literature databases in the field of computer science and electrical engineering. It contains journals, conference papers and technical standards published by IEEE.

5. GoogleScholar: developed and maintained by Google Inc. is a free academic search engine. It can search a variety of academic resources including academic journal articles, dissertations, conference papers and so on.

6. ElsevierScienceDirect: developed and maintained by Elsevier, it is one of the largest full-text academic journal databases in the world. It contains journal articles, books, etc. in a variety of subject areas.

7. SpringerLink: Developed and maintained by Springer Publishing House, SpringerLink is one of the world's leading full-text academic journal databases in the fields of science, technology and medicine. It contains journal articles, books, etc. in a variety of subject areas.