Steven Senne | The Associated Press Walmart Stores has been dealing with allegations that it failed to notify law enforcement that company officials authorized millions of dollars in payments in Mexico to speed up getting building permits and gain other favors.

Still looking for that perfect holiday gift? Today may be the day you find it online.

After all, it’s “Green Monday” — the busiest online shopping day in December — not to be confused of course with Cyber Monday, the biggest online shopping day of the year.

Although Green Monday to some may seem a bit contrived, just know this. Retailers from Best Buy to Walmart are offering a variety of deals and discounts, and several websites can direct you to the best ones.

Participating retailers • Find links to the major retailers and their deals at http://retailindustry.about.com.

Walmart • You can find its Green Monday website at www.walmart.com/greenmonday.

Deals guide • Another website with links to retailers and their deals is at www.thegreenmonday.com.

Additional website • Information about bargains and promotions also can be found at http://greenmondaydeals.com.