ABBREX

• 521. speedsolving.com (6)
• 522. spox.com (6)
• 523. sqlalchemy.org (1)
• 524. squadron.com (8)
• 525. stackoverflow.com (3)
• 526. stargazerslounge.com (1)
• 527. statssa.gov.za (1)
• 528. forums.steampowered.com (1)
• 529. stripes.com (1)
• 530. stuff.co.nz (2)
• 531. stumbleupon.com (1)
• 532. supersport.com (1)
• 533. swtor.com (2)
• 534. symantec.com (1)
• 535. symbaloo.com (1)
• 536. symmetrymagazine.org (3)
• 537. synology.com (1)
• 538. tacanow.org (1)
• 539. takelessons.com (1)
• 540. talendforge.org (1)

You can click on a site to see its acronyms / abbreviations.
Numbers in parantheses show the number of acronyms / abbreviations for that site.