Should software firms block social networking sites ?

In recent past we see lot of activity in social networking using websites. The sites like orkut, hi5 , Yahoo 360, MySpace are few in this sphere. People check less of mails or post less of blogs, but they make it sure that they log in into one of these site and check for new friends or communicate with the old ones often.

1. But is this activity increasing to the level that it needs to be blocked so that the normal buisiness is not affected ?

My opinion would be no. Its managements responsibility that people are connected socially. And when you work a lot and you are mostly near your computer and connected to internet there is no better way that these networking sites.
I use lot of Orkut, it helps me manage my friends, find old/new friends, get to know about people, above all that make best use of extra time.
Hope there is a time when you can find every one in this world in networks like these, the world open and every one is reachable as in case of Orkut.

How Supply Chain software are made ?

Last four months I saw how supply chain software are made as I was working with one of the majors in the domain.
You make click on a website, add the product to cart and click it to buy what you want and it reaches you in days.

1. What really happens under the hood?
2. Where exactly the products come from ?
3. How do they manage all this ?
4. Where do they get the products from ?
5. How do the run the business so efficiently ?
6. How many request comes in a day ?
7. How do the intract with the transportation company ?
8. Do they really have some warehouses or product comes from the company where they manufacture those ?
9. How complex is the software involved ?
10. What on earth is RFID ?
11. To what level things are automated ?
12. How do they handle money ?
13. How do they handle shipments ?

Yea I got a shady picture about these questions . Suppy chain management is really a complex area to venture into.

Aura..