공부_영어
문법 확인 https://www.gingersoftware.com/grammarcheck#.We7FU9Jl-M_
컴퓨터_툴
그래프 그리기 https://www.desmos.com/calculator/ifg3mwmqun?lang=ko
문서용 도장 https://toolmaker.kr/stamp/view
컴퓨터_OA
VBA https://www.classu.co.kr/class/classDetail/9783?C9783
디자인_일반
색상비교 https://www.webdesignrankings.com/resources/lolcolors/
테이블 디자인 https://www.istockphoto.com/kr/search/2/image?mediatype=illustration&phrase=data+table+infographic
이미지 수정 https://pixlr.com/kr/editor/
디자인_PPT
https://slidesmania.com/tag/yellow-templates/page/2/
생활_식물
상추 https://www.clien.net/service/board/lecture/15585212?od=T31&po=1&category=&groupCd=
생활_운동화
벨룹
장례 https://www.ppomppu.co.kr/zboard/view.php?id=etc_info&no=34634
