jcatcw writes: Computerworld's review of the best Web apps covers the latest crop of online software packages. Gliffy is a flowchart and diagram application that works exactly like Microsoft Visio. ThinkFree supports word processing, spreadsheets and online presentations but distinguishes itself by offering a spell checker and custom dictionaries. What they like about YouSendIt — more than other options such as DropSend.com and MailBigFile.com — is that it actually works. GrandCentral is an intuitive and Web-enabled alternative to fixed mobile convergence — allowing you to use one unified phone number for work, home and cell phone. Xdrive.com has a service called Web Backup that offers control over online backups.