Hello, I was thinking on combining script files and other stuff I have addthis google adsense FB stuff and more I was thinking of uploading the scripts of Addthis etc to my own hosting. So the question is, is it legal to do so?
If i understand what your asking....the answer would be not even close....but you can use an <iframe> tag to encapsulate it into your script since the iframe links back to the developers original content
Well I want to add all scripts into one external script file which will be hosted on my hosting rather than having many external script files from different servers.
If the owners of original scripts allow you to do so, you can. Some scripts provide api for us to use the features of their sites.