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Tooltips - Wowhead
A script to add Wowhead tooltips to your World of Warcraft site. Options for icons, ranks, and more. Works on Items, Spells, Recipes, Enchants, etc.
Interactive Chart Tooltips - Advanced Data Visualization
Interactive Chart Tooltips - Would you like to see some great data visualizations? With help of these the charts speak for themselves. Free Downloads!
Tooltip - Wikipedia
The tooltip or infotip or a hint is a common graphical user interface element. It is used in conjunction with a cursor, usually a pointer.The user hovers the pointer over an item, without clicking it, and a tooltip may appear—a small "hover box" with information about the item being hovered over.
http://www.chartjs.org/samples/latest/tooltips/custom-points.html

Tooltips & Toggletips - Inclusive Components
Tooltips — affectionately misnomered as "tootlips" by my friend Steve — are a precariously longstanding interface pattern. Literally "tips for tools", they are little bubbles of information that clarify the purpose of otherwise ambiguous controls/tools.
Customizable Tooltips on Excel Charts - Clearly and Simply
The Requirement and Excel’s Shortcoming. Tooltips are a very helpful feature for exploring and analyzing data. This is especially the case on XY Scatter or Bubble charts with a lot of data points.
Interactive Tooltips on Excel Worksheets - Clearly and Simply
The Next Level of Tooltips on Excel Worksheets: Taking Advantage of the ActiveX Spreadsheet Control . Tooltips are one of the most helpful features when prospecting large data sets.
SALV Table 18 - ICONs and Tooltips | ABAP Help Blog
ALV using SALV Model to show ICONs and Tooltips for each of the ICON with full code lines
Using d3-tip to add tooltips to a d3 bar chart - bl.ocks.org
Updated April 4, 2018. Using d3-tip to add tooltips to a d3 bar chart. Open
Steam Workshop :: Detailed Tooltips
Steam Workshop: Don't Starve. Port from DST, comment with any bugs reports or feature requests. Enhances tooltips to display values for: weapon base damage, tool durability, armor condition, armor protection type, and armor damage