Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.

To convince yourself whether your work is halal or haram you ought to ask two questions:

1- What is the nature of the content you are uploading? Is it ethically sound or not? In other words, are they intended to promote virtue or provide beneficial knowledge, etc.? if they are then you may upload them offered, you can satisfy the 2nd condition:

2- Is it legitimate to do so? In other words, does your work infringe copyright rules, and thus amount to piracy? If it is legitimate and is not considered a violation of copyright, then you may do so.

As a Muslim, while embarking on any venture, whether dealing with electronic or print media: will I be pleased to see it in my record presented to me on the Day of Judgement or will I be ashamed of it?

One of the great men of letters of the past who had passed away appeared in a dream to a saintly person: when the latter asked him about his work, the former said, “Do not write anything you don’t want to appear in your record of deeds on the Day of Judgement!”

Allah Almighty knows best.