HEATKEYS

Internet Consultant, IT manager, software developer

Use this bit calculator and make conversions between bits, bytes, kilobits, kilobytes, megabits, megabytes, gigabits, gigabytes, terabits, terabytes, petabits, petabytes, exabits, exabytes, zettabits, zettabytes, yottabits, yottabytes.

SpeedGuide.net - The Broadband place. Everything about cable modems, DSL & Satellite with large section on free speed optimizations, general Windows tweaks, tips and fixes for boosting system performance.

Tools by Digital Dutch

Perform conversions between 2100 various units of measure in more than 70 categories.

Pricing for T1 lines provided directly from multiple T1 service providers including AT&T, BellSouth, Cogent, Covad, MCI, Qwest, SAVVIS, SBC, Sprint, Verio, XO and many others.

Tools for measuring the speed of the internet. Measure your surfing speed with YourSpeed, and measure your website

Online IP Subnet Calculator

Free Online Math Calculators and Converters. Mathematics Calculation is made easier.

Bit Brokers International is a rock bit and tool supplier of new, surplus and rebuilt rotary tricone rock bits, hole openers, cutters, drag bits, pdc bits, dth hammers, hammer bits, and diamond enhanced hammers

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

The richest collection of free online calculators, including mortgage, loan, BMI, weight watchers points calculator and hundreds more...