On this site you'll find:
The site contains complete content from January 1994 up to 3 issues prior to the current newstand issue. And it contains selected items from the most recent 3 issues.
For the most complete current coverage, you can subscribe to BYTE Magazine.
For the most complete historical coverage, you can subscribe to BYTE on CD-ROM. It contains the full text of all issues from 1990-1994, and full text plus all graphics from all issues since 1995. Here's more info about BYTE on CD-ROM.