Random access memory types

SRAM

Static Random Access Memory

EEPROM

Electrically Erasable Programmable Read-only Memory

Flash memory

Possible optimizations

Software

use PROGMEM what it does is

1const dataType variableName[] PROGMEM = {}; // use this form

Serverside

Do the heavy lifiting on the server. provide lightweight interface for arduino to work with.

Problems ahead

Memory fragmentations