-->Singular or plural
- Network Technology
-->Singular or plural, but usually plural
- Commentary or Editorials
-->Take your pick. Some editorial page sections are headed as
Commentary, some as Editorials, some as News Analysis. It is all the same thing.
- Opinion or Opinions
-->Use either one. Use Opinion to mean opinion in general or Opinions to mean more than one opinion. (Letters from readers are usually in the Letters to the Editor section on the editorial page.)
-->Love isn't normally pluralized. It could be considered singular or plural.
- Reading or Learning
How about Reading and Learning? :)
I suggest Careers. Or Jobs.
- Dating and Friendship
- Family or Family Album
I like Family better.
- Christian life or Church Activities
I would use Church Activities for activities that take place at the church or among church members. Christian Life seems to me to be a more wide-ranging category.
- Missions or Ministries
My opinion is that those are the same.
The rest are fine as is.
- For Teachers