Even in an era where 8-meter class telescopes are common, small telescopes are considered very valuable research facilities since they are available for rapid follow-up or long term monitoring observations. To maximize the usefulness of small telescopes in Korea, we established the SomangNet, a network of 0.4{1.0 m class optical telescopes operated by Korean institutions, in 2020. Here, we give an overview of the project, describing the current participating telescopes, its scientic scope and operation mode, and the prospects for future activities. SomangNet currently includes 10 telescopes that are located in Australia, USA, and Chile as well as in Korea. The operation of many of these telescopes currently relies on operators, and we plan to upgrade them for remote or robotic operation. The latest SomangNet science projects include monitoring and follow-up observational studies of galaxies, supernovae, active galactic nuclei, symbiotic stars, solar system objects, neutrino/gravitational-wave sources, and exoplanets.

Abstract
1. INTRODUCTION
2. SOMANGNET TELESCOPES
    2.1. SNU Astronomical Observatory (SAO) 1.0 mTelescope
    2.2. Kyung Hee Astronomical Observatory (KHAO)0.8 m Telescope
    2.3. Kyung Hee Astronomical Observatory 0.4 mTelescope
    2.4. DOAO 1.0 m Telescope
    2.5. Chung-Buk National University Observatory(CBNUO) 0.6 m Telescope
    2.6. Lee Sang Gak Telescope (LSGT)
    2.7. LOAO 1.0 m Telescope
    2.8. Wide-field Integral-field-unit Telescope (WIT)
    2.9. KIAS Chamnun Telescope (KCT)
    2.10. SNU RASA36
3. SOMANGNET OPERATION
4. SOMANGNET SCIENCE PROJECTS ANDHIGHLIGHTS
    4.1. Intensive Monitoring Survey of Nearby Galaxies,IMSNG
    4.2. Solar System Science
    4.3. Active Galactic Nuclei
    4.4. MMA with Neutrino and EM Signals
    4.5. MMA with GW and EM Signals
    4.6. Symbiotic Stars
    4.7. Extrasolar Planets
5. EDUCATIONAL AND TRAINING ASPECTS
6. FUTURE PROSPECTS AND CONCLUSION
REFERENCES

• Myungshin Im(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University) Corresponding author
• Yonggi Kim(Dept. of Astronomy & Space Science, Chungbuk National University/Chungbuk National University Observatory)
• Chung-Uk Lee(Korea Astronomy and Space Science Institute)
• Hee-Won Lee(Department of Astronomy and Space Science, Sejong University)
• Soojong Pak(School of Space Research, Kyung Hee University/Department of Astronomy and Space Science, Kyung Hee University)
• Hyunjin Shim(Department of Earth Science Education, Kyungpook National University)
• Hyun-Il Sung(Korea Astronomy and Space Science Institute)
• Wonseok Kang(National Youth Space Center)
• Taewoo Kim(National Youth Space Center)
• Jeong-Eun Heo(Gemini Observatory/NSF's National Optical-Infrared Astronomy Research Laboratory)
• Tobias C. Hinse(Department of Astronomy, Space Science and Geology, Chungnam National University)
• Masateru Ishiguro(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Gu Lim(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Cuc T. K. LY(Department of Astronomy, Space Science and Geology, Chungnam National University)
• Gregory S. H. Paek(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Jinguk Seo(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Joh-na Yoon(Chungbuk National University Observatory)
• Jong-Hak Woo(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Hojae Ahn(School of Space Research, Kyung Hee University)
• Hojin Cho(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Changsu Choi(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Jimin Han(School of Space Research, Kyung Hee University)
• Sungyong Hwang(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Tae-Geun Ji(School of Space Research, Kyung Hee University)
• Seong-Kook J. Lee(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Sumin Lee(Department of Astronomy and Space Science, Kyung Hee University)
• Sunwoo Lee(School of Space Research, Kyung Hee University)
• Changgon Kim(School of Space Research, Kyung Hee University)
• Dohoon Kim(Department of Astronomy and Space Science, Kyung Hee University)
• Joonho Kim(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Sophia Kim(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Mankeun Jeong(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Bomi Park(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Insu Paek(SNU Astronomy Research Center, Department of Physics and Astronomy, Seoul National University/Astronomy Program, Department of Physics and Astronomy, Seoul National University)
• Dohyeong Kim(Department of Earth Sciences, Pusan National University)
• Changbom Park(Korea Institute for Advanced Study)