The two different methods, both offer you, the player, the same user experience and the only difference is in the back end of how the online lottery ticket provider works. The two methods that online lottery sites use differ in one key way; They either have agents and employees all over the world that physically purchase tickets on behalf of clients or, the more recent phenomenon is when companies essentially take out an insurance policy on every ticket which is tied to the size of the jackpot. This is the difference between you playing the lottery online and betting on the lottery online*. In the latter option you are, de facto, not playing the US Powerball online but rather you are placing a bet with an insurance company on the outcome of the corresponding Powerball draw. 
Jump up ^ Lotto, Lucy (June 30, 2011). "Powerball Lottery Changes for 2012". WorldLottery.net. Archived from the original on August 23, 2013. Retrieved September 4, 2013. The first and biggest change to the Powerball Lottery is the introduction of the $40 million base jackpot. Now, when the Powerball Lottery jackpot is reset after a win it will start at $40 million, tempting even more players in for those early draws. Another promise, that is sure to be popular with lottery players, is the introduction of more prizes. From January, Powerball players will have even better odds of winning a prize worth at least $1 million, and it’s that fact that may soften the third and biggest ever change. From January 15, 2012, Powerball Lottery tickets are doubling in price, in what is the biggest change to the Powerball Lottery draw since its launch in 1994.

Ohio and New York joined The Big Game consortium on May 15, 2002, when the game was renamed The Big Game Mega Millions, temporarily retaining the old name and the original "gold ball" logo. The "Big Money Ball" became the "Mega Ball." While the game's name was altered, the yellow ball in the new Mega Millions logo continued to read "The Big Game" until February 2003, after which it was replaced with six stars representing the original members of the consortium. The first (The Big Game) Mega Millions drawing was held two days later, on May 17. The Mega Millions trademark is owned by the Illinois Lottery. The first three lotteries to join Mega Millions were Washington (in September 2002), Texas (in 2003) and California (in 2005); California was the last addition to Mega Millions before the cross-sell expansion of 2010. Montana joined Mega Millions on March 1, 2010, the first addition to Mega Millions after the cross-sell expansion.
Jackpot winners have the choice of receiving their prize either in one single lump sum payment, or once a year with the annuity option (30 payments over 29 years). They have 60 days to decide which way they want to be paid. During these 60 days, a player who originally opted for the annuity payment is able to instead take the lump sum payment option. If they do not make a choice either way, after 60 days, the player will automatically receive their prize as an annuity.
In spite of the huge popularity of this lottery draw game it is still an unknown to many that you can buy Powerball tickets online, whether you are in the US or not. To be clear, this doesn’t even mean that you have to be a citizen of the US either. No citizenship & not based in the US? You can still play powerball online and buy lottery tickets online for a number of different lottery draw games. 
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