Covering everything from algebra to physics, the lessons taught on Virtual Nerd include all the dressings of a real-world classroom—teachers, whiteboards, note-taking devices—plus the distinct advantage of pause-and-play learning. The site boasts many useful tools, including the Dynamic Whiteboard, which keeps a running list of notes that students can use to review or to dive even deeper into the subject at hand. Students can also examine symbols and formulas as lessons progress. Virtual Nerd offers two distinct types of learning: month-long instruction and online boot camps. The former includes tutorials and study materials that supplement traditional classroom learning. The latter is intended to present students with a grab bag of study materials, including a customized list of tutorials, practice problems, and quizzes. Regardless of subject matter, all lessons support Virtual Nerd’s mission to provide convenient, interactive learning for a fraction of the cost of hiring a tutor or kidnapping a Teletubby.
Though a computer's bugaboos are as diverse and extraordinary as the people who own them, CAT Computers has determined during its years of experience that 70–80 percent of all computer issues can be resolved in an hour, while the other 30 percent often require years of expensive therapy. In an hour, CAT technicians will check your computer for viruses, spyware, adware, and other nasty cyber-vermin, while also dealing with any other persistent problems or annoyances you've been experiencing. Whether you're taking preventive measures to protect your computer or you’ve accidentally clicked on the wrong Google result while prepping for an upcoming podiatry conference, today's Groupon to CAT Computers will get your newfangled Babbage engine squeaky-clean and running at peak performance.
Though they boast the capabilities to doctor to ailing phones of any make or model, iSmart's number one specialty is fixing iPhones. The tech-savvy staff has successfully repaired more than 4,000 phones to date, remedying issues such as cracked screens, broken buttons, and lethargic batteries, and also maintains a selection of new and used phones for customers in need of a replacement. Beyond repairing nearly all issues commonly faced by the iPhone 3G, 3GS, 4, and 4S, the shop is also able to fix problems on Samsung Galaxy smartphones, the iPod, iPad, and the yet-to-be-released iPatch, and is often able to diagnose problems over the phone.
The St. Louis Cartridge World is one of the region's biggest ink and toner retailers. Roy G. Biv-ify your printer or copier with ink for most major brands, including HP, Dell, Canon, Lexmark, and Epson. Prices range from less than $10 to more than $100, but many cost less than $25. Inkjet cartridges can be refilled an average of four to five times, usually with no wait time, and the Cartridge World experts are happy to field all questions within the bounds of the cartridge universe.
At more than five locations through Missouri, CPR Cell Phone Repair's expert technicians nurse malfunctioning phones back to health. Specializing in iPhones – though able to repair any brand – the team fixes everything from cracked screens to water damage and charging problems within hours. Besides phones, each tech is well versed in plenty other devices, from tablets and laptops to gaming systems, such as Xbox 360s or shoeboxes painted like PlayStations.