Complex sentence: Google adopted the idea of selling search terms from a small search engine company named "goto.com" in 1998, this move had a significant effect on the SE business which was struggling until then to one of the most profitable businesses in the internet.
Split into simpler sentences: Google adopted the idea of selling search terms in 1998, from a small search engine company named "goto.com". This move had a significant effect on the SE business, which went from struggling to one of the most profitable businesses in the internet.