is it legal ? what are the copyright related issue I can face ?
https://en.wikipedia.org/wiki/Fair_use
If you don't meet the conditions, you'd be infringing on these sites' copyrights and they could take legal action against you.
- "the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes"
- "the amount and substantiality of the portion used in relation to the copyrighted work as a whole" - are you showing a screen shot of an entire article, or just a small excerpt from it.
More on "purpose and character" (from the previously cited Wikipedia article):
The first factor is regarding whether the use in question helps fulfill the intention of copyright law to stimulate creativity for the enrichment of the general public, or whether it aims to only "supersede the objects" of the original for reasons of personal profit. To justify the use as fair, one must demonstrate how it either advances knowledge or the progress of the arts through the addition of something new. A key consideration is the extent to which the use is interpreted as transformative, as opposed to merely derivative.
But if you're concerned with the legality of a business decision, you should really consult a lawyer.