Have you tried ... Twitter?

https://dev.twitter.com/rest/public

https://dev.twitter.com/streaming/overview

It depends on what you want to do with the data, if you can do with sampled data, the API is probably the best. If you need to wrk on graphs aspects, then the API might not be enough. A few other datasets exist, I used one, quite a large one, but with texts mostly in japanese, in these papers for instance : 

https://www.researchgate.net/profile/Fujio_Toriumi/publication/262283317_Information_Diffusion_on_Twitter_Everyone_Has_Its_Chance_But_All_Chances_Are_Not_Equal/links/53e893010cf2fb7487243b42.pdf

https://scholar.google.fr/citations?view_op=view_citation&hl=en&user=ZPeN_HAAAAAJ&citation_for_view=ZPeN_HAAAAAJ:tkaPQYYpVKoC

However I do not own the data. If interested despite the Japanese language, you can ask for authorization of usage to the owners, and later they or I can probably share it...

Conference Paper Information Diffusion on Twitter: Everyone Has Its Chance, B...

I suggest you using http://twitter4j.org/ and a very basic script of java. It can retrieve a lot of information and it is quite versatile. 

I used with my colleagues in our last research about opinions and feelings, and it has worked very well.

Hope you find it useful!

I'm not sure on the kind of task you would like to carry out, but in case if it helps here is one https://datahub.io/dataset/twitter-2012-presidential-election. It's a publicly available dataset and i don't claim to own it. ... It has tweets, retweets, replies and user attributes, in general what you would normally get from the TwitterApi

you should give this a try maybe you can achieve it through this https://github.com/jdevoo/twecoll

Thanks everyone

hi,

Please, i need the dataset set of twitter for information diffusion field

In fact, I got http://twitter4j.org/

but i did not know I can use java script to get the data.

please , can anyone help?

it is Late, but:

http://sag.art.uniroma2.it/demo-software/context-sa/