There are around 3.5 million queries asked over Google's search algorithm. It's become a brand, and now it's control over 90% of the search market. Google's monopoly of knowledge has served up to the online, which suggests there are always on top of things of the narrative in any discourse being aware or not being mindful. This explains why different alternatives to google exist, et al. are under construction. 

Benefits of Blockchain-based search engine: 

The first advantage of BBSE is that your privacy is on the mark. One doesn't need to worry about the search profile being monitored, and then it's sold to the advertising companies. Within the same way, search results can't be traced back. BBSE is transparent. Everyone on the decentralized network often sees all the search queries if they require it. Moreover, the identities of the individuals who initiated the search results will remain hidden. Transparency has nothing to try to do with privacy. Blockchain-based search engines also are neutral. Some search results aren't disfigured to point out paid adverts, and there's nothing to limit the policies which will dictate the results displayed after an inquiry. With the blockchain-based program, the sole focus is on the community's interest. There's no such big organization with the cruel motive for running the search engines. On BBSE, the resources are shared. Everyone on the network has got to follow and replica it. 

Most popular blockchain-based search engines: 

Nebulas: it's referred to as the Google of Blockchain. It provides various services targeted at content marketers, publishers, advertisers, and other searchers. It contains a crypto-coin, and it's becoming the primary alternative of Google as a blockchain-based program. 

Research: this is often a replacement blockchain-based program that provides incentives to the developers and users to ensure the engine's expansion. 

Aarzoo Search: this is often a US-based Blockchain driven program that provides the result with no bias. 

Neeva: Built by ex-google ads boss and allows user behavior tracking. this is often still under the Beta version