New Domains you mean? DId you mean new gtld releases like .club, .tattoo, .piza etc etc? if you want to keep in touch with domain industry updates, then you better subscribe to domaining.com feed. Feedly is a great app i am using to read domaining.com stories. They will usually publish new about new domain extension releses.
Or keep an eye on Trademark Clearinghouse (TMCH). I didn't post a link because you can easily find it on google. TMCH lists all new gTLD's launching for the purpose of giving the trademark owners get their domain names during the sunrise periods. There you go!