Dear SPOGG:Ah, it is time to point out the difference between acronyms and abbreviations. Acronyms are entirely new words made out of letters of other words. SCUBA, LASER and SPOGG are examples, though only SPOGG is new enough that it's still routinely capitalized. Some day... some day (insert shaking fist here).
Can acronyms have periods after each letter? I thought not, but others disagree...
One does not use periods with acronyms.
An abbreviation is also made from the initial letters of other words, but it's not a separate word. C.I.A., for example. One may use periods with abbreviations, or one may leave them out. It is a matter of style.
And speaking of style, this handsome SPOGG logo can be printed on a variety of products you want and badly need. Check out the SPOGG shop for more.