unintentionally, i have been trying different search engine in the past, whether is the most popular Google search engine or other form of search facilities. if im unable to find any information from the common search engine, i'll just go for the alternatives.

using different search engines, of course, will broaden our choice of information. one of obvious benefit is, you will be able to do comparation from different search engines. ultimately, you will be able to achieve the result you think suit you best.

i prefer using linking more than site feed. i dont really see the difference in it but i think just linking is a more straightforward to to connect you and your friend's site. i might want to try using site feed more in future so that i might be able to realise the benefit side of sitr feed.