Hello, I am thinking of new project, and have difficulties in finding if it would be legal or not. So the project would be - to find martial arts clubs for people. So It's like I take contact details from every club's website and put into my website. User comes and ,for example, types city: New York and then he sees a list of sport clubs with details such as: Sport club name: aaa Sport club website: aaa.com Sport club phone number: 54... Sport club address: bbb Do You think it's legal to take these details from websites and put into a list for people who are looking for sport clubs?
If it is public domain knowledge, I doubt it is a problem. Or you may contact those web sites telling them of your new project and that you are putting in their information, they may even link back to you.
Hm! About linking back - quite nice idea ! Well, I am just asking, cuz there are loads and loads and loads of clubs which would take much time to send emails and etc. But maybe it's worth it.
I don't see any legal problems doing what you have described. Basically, you are building a niche business directory. There are thousands of sites like these on various businesses.
In this case you do not have to worry about legal issues. Although not every club will want to be on that list and should give them the opportunity to delete their data.