I have received e-mails from folks about my 2009 articles on immigration law compliance and end-client letter issues in H-1B cases published by American Law Institute - American Bar Association. Here is the link:
http://www.immigration.com/articles-rajiv-s-khanna

USCIS' Fraud Detection and National Security (FDNS) office has recently explained the three types of site visits that are currently being conducted:

1. Risk Assessment Program fraud study (RANDOM VISITS). This is a joint study by USCIS and ICE applicable to both family-based and employment-based cases. Cases are chosen for randomly for review and site visits  usually after a case is approved. The purpose of this study is to build a profile of the types of cases where fraud is most prevalent.

Here is a series of questions that should be relevant for many people:

PLEASE CONFIRM THE FOLLOWING INFORMATION WITH THE U.S. CONSULATE CLOSEST TO THE PLACE OF RESIDENCE IN YOUR HOME COUNTRY. LAWS ARE SUBJECT TO FREQUENT CHANGES

The following FAQ should cover the issues.

Here is a question from a community member:

Here is a contribution from a member of our community:

Trying to get an F-1 while an AOS/I-485 is pending has been a recurring theme in our community. Last year in May/June we had spent two hours talking about this theme in our community conference calls. A lot of people wanted to do their MBA and were not able to wait for their green cards to join school.

Generally speaking when you have exhibited immigrant intent, getting an F-1 becomes difficult. On top of that, USCIS has said that F-1 is not compatible with a simultaneous I-485. But USCIS has never told us what happens if do file for an F-1 while an I-485 is pending.

Some questions from the community:

No. An I-539 is used if you want to change status within USA.