Gemini has a number of interesting and active search engines
Various Gemini search engines have come and gone. Here are some active ones:
My Gemini Search engine, launched on 2022-02-07.
GUS is the primary search engine that most people use and the default search engine used by most gemini browsers. Originally created by Natalie Pendragon and announced on the mailing list, René Wagner has been a big contributor the starting in 2021.
Search engine and crawler inspired by GUS. Seems to index quite a bit less.
Lupa is a research crawler that collects stats about sites. It does not provide a search interface
Besides search engines, there are 2 different indexes of hashtags and @mentions.
📓 Gemini-wide #Hashtag Index (Hosted on Kennedy)
👩🏾🚀 Gemini-wide @Mentions Index (Hosted on Kennedy)
Super cool project by JBanana which is indexing #hashtags. Great idea since it essentially is opt-in metadata capsule owners can provide