The Lillian H. Smith Branch of the Toronto Public Library, established to recognize Smith's contribution to public library service in the city, contains three notable special collections:
  • The Osborne Collection of early children's books up to the end of 1910.
  • The Lillian H. Smith Collection of modern notable English language children's books from 1911 on.
  • The Canadiana Collection of English language children's materials.

Yukazine is the personal blog of Japanese-born Canadian Yuka whose interests include children's literature. She has a page about Smith that is available to view in the original Japanese as well as an English translation produced through Yahoo Babelfish. As is typical with online translation services, the resulting page is not a perfect copy and can be difficult to read.

The Unreluctant Years: A Critical Approach To Children's Literature is Smith's 1953 work that argues children's books must be evaluated using the same standards as adult literature. She identifies criteria for selection in several categories: fairy tales, mythology, heroic tales, poetry, picture books, stories, fantasy, historical fiction, and information books. It is available to read online in its entirety at the Internet Archive.

The City of Toronto Archives created an online exhibit about organized children's leisure in Toronto from 1897 to 1934 and it includes a section titled children's libraries that recognizes Lillian H. Smith.