In light of those TOS alterations last year we built an API that gives access to Google's search. It was for our own use only but after some requests we decided to open it up. We're planning to add additional search engines in the future!
Should anyone be looking for an easy way to implement / acquire search results you are free to sign up and give the REST API a try: https://searchapi.io
It returns JSON results and should be easy enough to implement with the detailed docs.
It's a shame that Bing and Yahoo are miles ahead on Google in this regard. Their APIs aren't cheap, but at least available.
