News outlets across the world use Twitter to promote their coverage and engage with readers.  They can provide their Twitter handle in machine readable format using Twitter's "twitter:site" HTML META property, which is captured in the Global Embedded Metadata Graph (GEMG). While not every news outlet has a Twitter account or specifies it using this property, many do:

SELECT count(distinct(url)) FROM `gdelt-bq.gdeltv2.gemg`, unnest(metatags) metatag WHERE (key='twitter:site') and DATE(date)>= '2021-11-01' and DATE(date) <= '2021-11-30'

In all, 6,728,087 (54%) of articles include this information. This can offer useful additional context to a news article, allowing a client to point an interested reader to the social presence for that outlet.