This is probably wrong. IMHO what looks like has happened is there are a handful of HN-relevant companies had weak earning announcements yesterday[1] after market close, and that is coupled with a weaker US jobs report [2], [3] today. The overall market is off and there are a handful of major drops for the companies mentioned but this is not some public tech market panic event (yet).
Jim Cramer, et al are saying that it's the strength of the jobs report that is hurting. Because as long as unemployment is ~5% the Federal reserve might raise rates, opposed to if unemployment worsens, the fed might not.
That's not to say we're not due a correction.
[1]: http://biz.yahoo.com/research/earncal/20160204.html
[2]: http://www.nytimes.com/2016/02/06/business/economy/jobs-repo...
[3]: http://www.reuters.com/article/us-global-markets-idUSKCN0VE0...